Dr Ian Tyndall
Reader in Cognitive Psychology
About
Dr Ian Tyndall is a cognitive-behavioural psychologist in the Department of Psychology within the University of Chichester’s Institute of Education, Health, and Social Sciences. Ian gained his BA Psychology degree at National University of Ireland, Galway (NUI, Galway) in Ireland. He was awarded a PhD degree in Psychology for his research on the language processes and learning histories underlying the development and maintenance of clinical anxiety under the joint supervision of Professor Jack James (NUI, Galway) and Dr. Bryan Roche (at Maynooth University, Ireland). He worked as a Lecturer in Psychology at American College Dublin from 2004 to 2010.
Ian moved to the UK in 2010 to take up a Senior Lectureship in Psychology at Chichester. He has led and taught on a wide range of modules across BSc, MSci, and MSc degrees at NUI, Galway, American College Dublin, and the University of Chichester, including Cognitive Psychology, Psychological Tests & Measurements, Psychology of Learning, Professional Skills in Psychology, Research Methods & Design, Social Psychology, Perspectives on Psychology, and Advanced Professional Skills in Psychology. Ian has supervised two PhD students to completion (Dr. Daniel Waldeck who conducted research on psychological flexibility and ostracism and Dr. Shane McLoughlin who researched how relational frame theory-based interventions can be applied to enhance cognitive aptitude and educational outcomes) and is currently co-supervising two PhD candidates.
Ian’s research interests (see below for further details and publications) span a broad spectrum of empirical investigations of basic cognitive processes, behaviour analysis, and clinical psychology applications. He is on the Editorial Boards of The Psychological Record and Frontiers in Psychology: Clinical and Health and serves as a regular reviewer for other journals such as the Journal of the Experimental Analysis of Behaviour, Behaviour and Brain Sciences, Acta Psychological, Journal of Contextual Behavioural Science, and Learning and Behaviour. Ian writes a regular blog series for the Association of Behaviour Analysis International (ABAI) Behaviour Science Dissemination series on symbolic language and thought.
MODULE TEACHING
Ian leads the following modules:
- PSY106 Perspectives on Psychology
- PSY202 Cognitive Psychology
- PSY307 Professional Skills on Psychology)
- PSYMO3 Advanced Professional Skills in Psychology)
ADMINISTRATIVE RESPONSIBILITIES
Ian is the Study Abroad/Erasmus officer for the Department of Psychology with responsibility for outgoing and incoming international exchange students. He is the Examinations and Assessment Officer for the Department with responsibility for co-ordinating Exam Boards. Ian is also the Employability Officer for the Department.
Key Publications
- Ball, I., Banerjee, M., Holliman, A., & Tyndall, I. (2024). Investigating success in the transition to university: A systematic review of personal risk and protective factors influencing academic achievement. Educational Psychology Review, 36. https://doi.org/10.1007/s10648-024-09891-0
- Tyndall, I., Vagos, P., del Cano, S., Pinto, H., & Trindade, I. A. (2023). Assessing psychological flexibility in chronic illness. The Psychological Record.
- Pancani, I., Waldeck., D., Tyndall, I., & Riva, P. (2023). An Ecological Momentary Assessment study to investigate individuals’ reactions to perceived social exclusion. Personality and Individual Differences.
- Waldeck, D., Pancani, L., Morris, E. M. J., Adie, J., Holliman, A., & Tyndall, I. (2023). Perceived ostracism and paranoia: A test of potential moderating effects of psychological flexibility and inflexibility. Current Psychology.
- Assaz, D., Tyndall, I., Oshiro, C., & Roche, B. (2022). A process-based analysis of cognitive defusion in Acceptance and Commitment Therapy. Behaviour Therapy.
- Tyndall, I. (2022). Relational Frame Theory as a promising framework for developing positive interventions in applied settings. Assessment and Development Matters.
- McLoughlin, S., Tyndall, I., & Pereira, A. (2022). Relational operant skills training increases standardised matrices in adolescents: A stratified active-controlled trial. Journal of Behavioural Education, 31, 298-325.
- Tyndall, I., Hartland, T., Banerjee, M., Giacomelli, V., Ball, I., Churchill, S., Pereira, A., & Lowry, R. (2022). Tailoring sexual health interventions for middle aged and older adults, including vulnerable populations: A scoping review. International Journal of Sexual Health.
- Trindade, I. A., Vagos, P., Moreira, H., Fernandes, D. V., & Tyndall, I. (2022). Further validation of the 18-item CompACT scale using a multi-sample design. Confirmatory factor analysis and correlates of psychological flexibility. Journal of Contextual Behavioural Science.
- May, R. J., Tyndall, I, McTiernan, A., Rodriguez, G., & McLoughlin, S. (2022). The Impact of the SMART Program on cognitive and academic skills: A systematic review and meta-analysis. British Journal of Educational Technology.
- Rehfeldt, R. A., & Tyndall, I. (2022). Why we are not acting to save ourselves: ACT, health, and culture. Behaviour Analysis in Practice.
- Rehfeldt, R. A., Tyndall, I., & Belisle, J. (2022). Music as a cultural inheritance system: A contextual-behavioural model of the symbolism, meaning, and value of music. Behaviour and Social Issues.
- Lee, J., Waldeck, D., Holliman, A., Banerjee, M., & Tyndall, I. (2022). Feeling socially anxious at university: An interpretative phenomenological analysis. The Qualitative Report.
- Sandoz, E., Bordieri, M., Tyndall, I., & Auzeenne, J. (2021). A Preliminary Examination of Derived Relational Responding in the Context of Body Image. The Psychological Record.
- McLoughlin, S., Tyndall, I., & Pereira, A. (2020). Convergence of multiple fields on a relational reasoning approach to cognition. Intelligence, 83.
- McLoughlin, S., Tyndall, I., Pereira, A., & Mulhern, T. (2020). Non-verbal IQ gains from relational operant training explains variance in educational attainment: An active-controlled feasibility study. Journal of Cognitive Enhancement.
- Sandoz, E., Bordieri, M., Boullion, G., & Tyndall, I. (2021). An Examination of transformation of evaluative and consequential functions through derived relations with participant-generated values-relevant stimuli. Journal of Contextual Behavioural Science, 21, 144-157.
- Newell, C., Sandoz, E., & Tyndall, I. (2021). A pilot study of the impact of brief exposure to images of breastfeeding mothers on attitudes towards mother’s breastfeeding in public. Health Communication.
- Waldeck, D., Bissett, G., & Tyndall, I. (2020). Experiential avoidance as a moderator for coping with a brief episode of ostracism: A pilot study. Journal of Contextual Behavioural Science, 17, 68-72.
- Brandrick, C., Hooper, N., Roche, B., Kanter, J., & Tyndall, I. (2021). A comparison of ultra-brief cognitive defusion and positive self-affirmation interventions on the reduction of public speaking anxiety. The Psychological Record.
- McLoughlin, Tyndall, & Pereira (2020). Relational operant skills training increases standardised matrix scores in adolescents: A stratified active-controlled trial. Journal of Behavioural Education.
- Waldeck, Banerjee, Jenks, & Tyndall (2020). Cognitive arousal mediates the relationship between perceived ostracism and sleep quality but it is not moderated by experiential avoidance. Stress & Health.
- Tyndall, I., Waldeck, D., Pancani, L., Whelan, R., Roche, B., & Pereira, A. (2020). Profiles of psychological flexibility: A latent class analysis of the Acceptance and Commitment Therapy model. Behaviour Modification 44, 365-393.
- Tyndall, I., Waldeck, D., Pancani, L., Whelan, R., Roche, B., & Dawson, D. (2019). The Acceptance and Action Questionnaire-II (AAQ-II) as a measure of experiential avoidance: Concerns over discriminant validity. Journal of Contextual Behavioural Science, 12, 278-284.
- Waldeck, D., Pancani, L., & Tyndall, I. (2019). An examination of the construct validity of the Generalised Pliance Questionnaire. Journal of Contextual Behavioural Science, 11, 50-54.
- McLoughlin, S., Tyndall, I., Mulhern, T., & Ashcroft, S. (2019). Technical notation as a tool for basic research in relational frame theory. The Psychological Record, 69, 437-444.
- Cummins, J., Tyndall, I., Curtis, A., & Roche, B. (2019). The Function Acquisition Speed Test (FAST) as a measure of verbal stimulus relations in the context of condom use. The Psychological Record, 69, 107-115.
- Tyndall, I., Ragless, L., & O’Hora, D. (2018). Effects of perceptual load and socially meaningful stimuli on crossmodal selective attention in Autism Spectrum Disorder and neurotypical samples. Consciousness and Cognition, 60, 25-36.
- Tyndall, I., Waldeck, D., Riva, P., Wesselmann, E., & Pancani, L. (2018). Psychological flexibility and ostracism: Experiential avoidance rather than cognitive fusion moderates distress from perceived ostracism over time. Journal of Contextual Behavioural Science, 7, 72-80.
- Colbert, D., Tyndall, I., Roche, B., & Cassidy, S. (2018). Can SMART training really increase intelligence? A replication study. Journal of Behavioural Education. Doi: 10.1007/s10864-018-9302-2
- Cummins, J., Roche, B., Tyndall, I., & Cartwright, A. (2018). The relationship between differential stimulus relatedness and implicit test effect sizes. Journal of the Experimental Analysis of Behaviour. Doi:10.1002/jeab.437
- Gladwin, T. E., Mobius, M., McLoughlin, S., & Tyndall, I. (2018). Anticipatory versus reactive spatial attention to threat. British Journal of Psychology, 110, 3-14. Doi:10.1111/bjop.12309
- Waldeck, D., Tyndall, I., Riva, P., & Chmiel, N. (2017). How do we cope with ostracism? Psychological flexibility moderates the relationship between everyday ostracism experiences and psychological distress. Journal of Contextual Behavioural Science, 6, 425-432.
- Tyndall, I., Papworth, R., Roche, B., & Bennett, M. (2017). Differential effects of word-repetition rate on cognitive defusion of believability and discomfort of negative self-referential thoughts postintervention and at one-month follow-up. The Psychological Record, 67, 377-386.
- Tyndall, I., Howe, B., & Roche, B. T. (2016). Exposure to progressive muscle relaxation leads to enhanced performance on derived relational responding tasks. The Psychological Record, 66, 213-222. doi 10.1007/s40732-016-0163-6
- Waldeck, D., Tyndall, I., & Chmiel, N. (2015). Resilience to ostracism: A qualitative inquiry. The Qualitative Report, 20, 1646-1670.
- O’Hora, D., Tyndall., I. T., McMorrow, M., Dale, R. A. C. (2013). Using action dynamics to assess competing stimulus control during stimulus equivalence testing. Learning and Behaviour, 41, 256-270. doi 10.3758/s13420-013-0102-1.
- Roche, B., O’Reilly, A., Ruiz, M., Tyndall, I., & Gavin, A. (2012). The Function acquisition speed test (FAST): A behavior-analytic implicit test for assessing stimulus relations. The Psychological Record, 62, 507-528.
- Tyndall, I. T., Roche, B., & James, J. E. (2009). The interfering effect of emotional stimulus functions on stimulus equivalence class formation: Implications for the understanding and treatment of anxiety. European Journal of Behaviour Analysis, 10, 121-140.
- Tyndall, I. T., Roche, B., & James, J. E. (2004). The relationship between stimulus functions and equivalence class formation. Journal of the Experimental Analysis of Behaviour, 81, 257-266.
CONFERENCES
- July 2018: Tyndall, Waldeck, Pancani, Whelan, Roche, & Pereira. Profiles of Psychological Flexibility. Association for Contextual Behavioural Science World Conference, Montreal, Canada.
- July 2018: Tyndall, Mcloughlin, Pereira, Bentham, & Mulhern. Critical tests of capacity of relational training to enhance educational attainment self-efficacy. Association for Contextual Behavioural Science World Conference, Montreal, Canada.
- April 2017: Tyndall, I. T., Curtis, A., Roche, B., & Cummins, J. ‘Using the Function Acquisition Speed test to Asses Attitudes towards Condom Use: A comparison of scoring methods’. Experimental Analysis of Behaviour Group, UK, Conference, London (UCL)
- November 2016: Tyndall, I. T., Waldeck, D, W., Whelan, R., & Roche, B. ‘The Acceptance and Action Questionnaire-II (AAQ-II) as a measure of experiential avoidance: Concerns over discriminant validity’. Association for Contextual Behavioural Science, 3rd UK & Ireland Conference, Edinburgh.
- November 2016: Tyndall, I. T., Papworth, R., Roche, B., & Bennett, M. ‘The Impact of Word Repetition Rate on Cognitive Defusion Efficacy’. Association for Contextual Behavioural Science, 3rd UK & Ireland Conference, Edinburgh.
- April 2015 Tyndall, I. T., Howe, B., & Roche, B. ‘Exposure to progressive muscle relaxation leads to enhanced performance on derived relational responding tasks’. Experimental Analysis of Behaviour Group, UK, Conference, London (UCL).
- April 2015 Tyndall, I. T., Roche, B., Baxter, S., & Waldeck, D. ‘A comparison of two Cognitive Defusion techniques with or without brief rationale on believability, discomfort, and willingness of depressive thoughts: A preliminary study’. Experimental Analysis of Behaviour Group, UK, Conference, London (UCL).
- December 2014 Tyndall, I. T., Roche, B., Baxter, S., & Waldeck, D. ‘A comparison of two Cognitive Defusion techniques with or without brief rationale on believability, discomfort, and willingness of depressive thoughts: A preliminary study’. Association for Contextual Behavioural Science, 2nd UK & Ireland Conference, Dublin, Ireland.
- December 2014 Waldeck, D., Tyndall, I. T., & Chmiel, N. ‘When ostracism does not lead to distress: The moderating effects of Experiential Avoidance’. Association for Contextual Behavioural Science, 2nd UK & Ireland Conference, Dublin, Ireland.
- May 2012 Tyndall, I. T., O’Hora, D., McMorrow, M, & Dale, R. ‘Using action dynamics to assess competing stimulus control during stimulus equivalence testing’. Association of Behaviour Analysis International (ABAI) 38th Annual Convention ,Seattle, USA
- May 2012 O’Reilly, A., Roche, B., & Tyndall, I. T. ‘Using the Function Acquisition Speed Test (FAST) to assess implicit sexual stimulus relations’. Association of Behaviour Analysis International (ABAI) 38th Annual Convention ,Seattle, USA
- May 2009 Tyndall, I. T., & O’Hora, D. ‘Phonological and Orthographic Interference Effects on Stimulus Equivalence Class Formation’. Association of Behaviour Analysis International (ABAI) 35th Annual Convention, Phoenix, AZ, USA.
- May 2009 Tyndall, I. T., Roche, B., & James, J. ‘Functional Classes of Anxiety-Provoking Stimuli Interfere with Arbitrary Equivalence Class Formation: A Process-Based Account’. Association of Behaviour Analysis International (ABAI) 35th Annual Convention, Phoenix, Arizona.
- April 2009 Tyndall, I. T., Roche, B., & James, J. ‘A Process-Based Account of the Interference of Functional Classes of Anxiety-Provoking Stimuli on Arbitrary Stimulus Equivalence Class Formation’. Experimental Analysis of Behaviour Group (EABG UK) Conference, London.
- May 2008 O’Hora, D., & Tyndall, I. T. ‘The Effect of Phonological and Orthographic Interference on Stimulus Equivalence Relations’. Association for Psychological Science (APS), 20th Annual Convention, Chicago, USA.
- May 2006 Tyndall, I. T. ‘International Conflicts: Psychological Effects on Children and Hope For the Future’. 1st Conference on the Impact of Conflict on Children and Adults, Al Quds University, Jerusalem, Palestine.
- November 2005 Tyndall, I. T., & O’Hora, D. ‘Phonological and Orthographical Interference in Derived Relational Responding’. 36th Annual Conference of the Psychological Society of Ireland (PSI), Derry.
- May 2005 Tyndall, I. T., Roche, B., & James, J. ‘Effects of Emotional and Neutral Stimulus Functions on the Emergence of Derived Stimulus Relations’. Association of Behaviour Analysis (ABA) 31ST Annual Convention, Chicago, USA..
- May 2005 Tyndall, I. T., & O’Hora, D. ‘Phonological and Orthographical Interference in Derived Relational Responding: A Comparison between Dyslexics and Non-Dyslexics’. Association of Behaviour Analysis (ABA) 31st Annual Convention, Chicago, USA.
- November 2004 Tyndall, I. T., Roche, B., & James, J. ‘Functional Similarity of Stimulus Class Members and Interference in Derived Relational Responding’. 35th Annual Conference of the Psychological Society of Ireland (PSI), Cork.
- May 2004 Tyndall, I. T., Roche, B., & James, J. Paper entitled ‘Interference in Derived Stimulus Relations: Emotionality or Functional Similarity of Stimulus Functions’. Association of Behaviour Analysis (ABA) 30th Annual Convention, Boston, USA.
- May 2003 Tyndall, I. T., Roche, B., & James, J. ‘Do Emotional Stimulus Functions Really Interfere with the Acquisition of Stimulus Equivalence’.Association of Behaviour Analysis (ABA) 29th Annual Convention, San Francisco, CA, USA.
- November 2002 Tyndall, I. T., Roche, B., & James, J. ‘Interference in Equivalence Class Formation: The Role of Stimulus Function’. 33rd Annual Conference of the Psychological Society of Ireland (PS1), Waterford.
- May 2002 Roche, B., Tyndall, I. T., & James, J. ‘The Role of Emotional Stimulus Functions in Derived Relational Responding’. Association of Behaviour Analysis (ABA) 28th Annual Convention, Toronto, Canada.
- May 2002 Tyndall, I. T., Roche, B., & James, J. ‘A Systematic Investigation of the Relationship Between Stimulus Function and Derived Relational Responding’. Behaviour Analysis in Ireland (BAI) Annual Meeting, Maynooth.
Professional
Ian is an Associate Editor for two journals Perspectives on Behaviour Science and The Psychological Record.
Ian is module leader for PSY202 Cognitive Psychology and PSY307 Professional Skills in Psychology at undergraduate level and PSYM03 Clinical Psychology, Life Coaching, and
Technological Applications at Level 7/Masters. He is the Examinations & Assessments Officer for the Department and the Employability and Student Experience Officer. He is Research Lead for REF 2029 for the Department.
Ian has organised and hosted a number of psychology conferences including the Chichester Coaching Psychology Conference (April 2024), the Chichester Experimental Analysis of Behaviour Conference (February 2024 + 2025), the Chichester Conference for Cognitive Behavioural Applications and Interventions in Clinical, Health, Education, and Social Settings (July 2022).
He has been a member of numerous professional bodies including the Psychological Society of Ireland, Association for Behaviour Analysis International, and Association for Contextual Behavioural Science. Her was the Editor of the Association for Behaviour Analysis International Dissemination Series blog on Language and Cognition to bring the science to the general public for a number of years.
Research
Ian’s research interests and projects are highly diverse and broadly include cognitive processes, behaviour analysis, clinical, social, and health psychology. In social psychology, he has focused on social exclusion and ostracism and published many papers on psychological factors that influence the probability of being ostracised and how to cope with social exclusion experiences and works with colleagues in the UK and Italy. In clinical psychology, Ian has published a large body of work on the Acceptance and Commitment Therapy model with particular emphases on experiential avoidance, cognitive defusion, and psychological flexibility.
In the cognitive psychology field, Ian has published on perceptual and attention processes and decision making, and in cognitive aptitude and intelligence. Ian has made a number of contributions in the field of behaviour analysis in his work on stimulus equivalence and derived relational responding, including co-developing the FAST (Function Acquisition Speed Test) and his work testing the effects of the SMART (Strengthening Mental Abilities with Relational Training) in primary and secondary schools. In the wider health psychology domain Ian has published work on sexual health in over 45s as the part the Interreg 2Seas funded SHIFT project, interventions designed to increase acceptance of breast feeding in public, and conceptual work on culture change and heath behaviour. Ian has also conducted work in educational psychology with studies on altering unhelpful societal academic stereotypes in young girls and navigating transitions from school to university
PhD Supervision
Director of Studies and co-supervised Shane McLoughlin to award of PhD degree in October 2019. Shane’s doctoral research was on the application of relational frame theory and the SMART Programmeto enhance cognitive aptitude and educational attainment in school pupils.
· Supervised Daniel Waldeck to award of PhD degree in Psychology in November 2016. Daniel’s doctoral thesis was on psychological flexibility as a mechanism for coping with psychological distress caused by ostracism.
Director of Studies for Isabelle Ball’s PhD candidature research programme on psychological factors, Adaptability in particular, that might be associated with successful transition from school to university (October 2021 – present).
· Director of Studies for Josephine Ambalada’s PhD candidature research programme on Autism and gastro-intestinal and sensory eating issues from February 2024 – present.
· Co-supervisor of Andre de Nascimento’s PhD thesis on psychological impact (e.g., effects on psychological flexibility) of singing in a choir for cancer patients for those diagnosed with cancer, 2018-present.
· Co-supervisor of Alison Woodward’s PhD thesis on post-traumatic growth, the self, psychological flexibility and humility 2020 – present.
· Co-supervisor of Alex Sharpe’s PhD candidature research programme on psychological impact of doomscrolling on smartphones on wellbeing June 2024 – present.
· External co-supervisor of Victoria Giacomelli’s South Coast Doctoral Partnership Award PhD candidature research programme on health literacy in children at University of Portsmouth (October 2024 -).
Research Output
Articles
Hampshire, B. and Tyndall, I. (2024) Effect of Target differentiation, prioritization, and environmental clutter on quiet eye duration in first person shooter esports: A brief report pilot study. Journal of Electronic Gaming and Esports. pp. 1-27. ISSN 2836-3523 (In Press)
Waldeck, D., Berman-Roberts, E., Smyth, C., Riva, P., Adie, J., Holliman, A. and Tyndall, I. (2024) Unravelling perceived ostracism: the role of antagonistic traits and attachment orientation. The Journal of Psychology. pp. 1-19. ISSN 0022-3980 10.1080/00223980.2024.2396837
King, R., Buxton, H. and Tyndall, I. (2024) Aphantasia and autism: an investigation of mental imagery vividness. Consciousness and Cognition, 125. pp. 1-14. ISSN 1053-8100 doi.org/10.1016/j.concog.2024.103749
Ball, I., Banerjee, M., Holliman, A. and Tyndall, I. (2024) Investigating success in the transition to university: a systematic review of personal risk and protective factors influencing academic achievement. Educational Psychology Review, 36 (52). ISSN 1040726X 10.1007/s10648-024-09891-0
Tyndall, I., Vagos, P., Cano, S., Pinto, H. and Trindade, I. (2023) Assessing psychological flexibility in chronic illness. The Psychological Record, 73. pp. 565-574. ISSN 0033-2933 10.1007/s40732-023-00572-y
Assaz, D., Tyndall, I., Oshiro, C. and Roche, B. (2023) A process-based analysis of cognitive defusion in Acceptance and Commitment Therapy. Behaviour Therapy, 54 (6). pp. 1020-1035. ISSN 0005-7894 10.1016/j.beth.2022.06.003
Waldeck, D., Smyth, C., Riva, P., Adie, J., Holliman, A. and Tyndall, I. (2023) Who is more likely to feel ostracized? A latent class analysis of personality traits. Personality and Individual Differences, 213. pp. 1-6. ISSN 0191-8869 10.1016/j.paid.2023.112325
Marinucci, M., Riva, P., Lenzi, M., Lasagna, C., Waldeck, D., Tyndall, I. and Volpato, C. (2023) On the lowest rung of the ladder: How social exclusion, perceived economic inequality and stigma increase homeless people’s resignation. British Journal of Social Psychology, 62 (4). pp. 1817-1838. ISSN 2044-8309 10.1111/bjso.12657
Pancani, L., Waldeck, D., Tyndall, I. and Riva, P. (2023) An Ecological Momentary Assessment Study to investigate individuals’ reactions to perceived social exclusion. Personality and Individual Differences, 200 (111913). pp. 1-6. ISSN 0191-8869 10.1016/j.paid.2022.111913
Waldeck, D., Pancani, L., Morris, E., Adie, J., Holliman, A. and Tyndall, I. (2022) Perceived ostracism and paranoia: A test of potential moderating effects of psychological flexibility and inflexibility. Current Psychology, 42. pp. 29138-29148. ISSN 1936-4733 10.1007/s12144-022-04008-8
Tyndall, I., Hartland, T., Banerjee, M., Giacomelli, V., Ball, I., Churchill, S., Pereira, A. and Lowry, R. G. (2022) Tailoring sexual health interventions for middle-aged and older adults, including vulnerable populations: A scoping review. International Journal of Sexual Health, 34 (4). pp. 593-613. ISSN 1931-7611 10.1080/19317611.2022.2089313
Tyndall, I. (2022) Relational Frame Theory: A framework for psychologists to develop positive interventions to bring about real change in applied settings. Assessment & Development Matters, 14 (2). pp. 19-24. ISSN 2040-4069 10.53841/bpsadm.2022.14.2.19
Trindade, I., Vagos, P., Moreira, H., Fernandes, D. and Tyndall, I. (2022) Further validation of the 18-item Portuguese CompACT scale using a multi-sample design: Confirmatory Factor Analysis and correlates of psychological flexibility. Journal of Contextual Behavioral Science, 25. pp. 1-9. ISSN 2212-1447 10.1016/j.jcbs.2022.06.003
Lee, J., Waldeck, D., Holliman, A., Banerjee, M. and Tyndall, I. (2022) Feeling Socially Anxious at University: An Interpretative Phenomenological Analysis. The Qualitative Report, 27 (4). pp. 897-919. ISSN 1052-0147 10.46743/2160-3715/2022.5270
May, R. J., Tyndall, I., McTiernan, A., Roderique‐Davies, G. and McLoughlin, S. (2022) The impact of the SMART program on cognitive and academic skills: A systematic review and meta‐analysis. British Journal of Educational Technology, 53 (5). pp. 1244-1261. ISSN 1467-8535 10.1111/bjet.13192
Newell, C., Sandoz, E. and Tyndall, I. (2022) A pilot study of the impact of brief exposure to images of breastfeeding mothers on attitudes towards mother’s breastfeeding in public. Health Communication, 37 (2). pp. 185-190. ISSN 1532-7027 10.1080/10410236.2020.1830511
Rehfeldt, R. A., Tyndall, I. and Belisle, J. (2021) Music as a Cultural Inheritance System: A Contextual-Behavioral Model of Symbolism, Meaning, and the Value of Music. Behavior and Social Issues, 71. pp. 291-306. ISSN 1064-9506 10.1007/s42822-021-00084-w
Rehfeldt, R. A. and Tyndall, I. (2021) Why we are not acting to save ourselves: ACT, Health, and Culture. Behaviour Analysis in Practice. pp. 1-16. ISSN 1998-1929 10.1007/s40617-021-00592-6
Sandoz, E. K., Bordieri, M. J., Boullion, G. Q. and Tyndall, I. (2021) An examination of transformation of evaluative and consequential functions through derived relations with participant generated values-relevant stimuli. Journal of Contextual Behavioral Science, 21. pp. 144-157. ISSN 2212-1447 10.1016/j.jcbs.2021.07.002
Buckley, C., Farrell, L. and Tyndall, I. (2021) Brief stories of successful female role models in science help counter gender stereotypes regarding intellectual ability among young girls: A pilot study. Early Education and Development, 33 (4). pp. 1-12. ISSN 1040-9289 10.1080/10409289.2021.1928444
Brandrick, C., Hooper, N., Roche, B., Kanter, J. and Tyndall, I. (2021) A Comparison of Ultra-Brief Cognitive Defusion and Positive Self-Affirmation Interventions on the Reduction of Public Speaking Anxiety. Psychological Record, 71. pp. 109-117. ISSN 0033-2933 10.1007/s40732-020-00432-z
Waldeck, D., Pancani, L., Holliman, A., Karekla, M. and Tyndall, I. (2021) Adaptability and psychological flexibility: Overlapping constructs? Journal of Contextual Behavioral Science, 19. pp. 72-78. ISSN 2212-1447 10.1016/j.jcbs.2021.01.002
Sandoz, E. K., Bordieri, M. J., Tyndall, I. and Auzenne, J. (2020) A Preliminary Examination of Derived Relational Responding in the Context of Body Image. Psychological Record, 71 (2). pp. 291-306. ISSN 0033-2933 10.1007/s40732-020-00439-6
McLoughlin, S., Tyndall, I. and Pereira, A. (2020) Convergence of multiple fields on a relational reasoning approach top cognition. Intelligence, 83. ISSN 0160-2896 10.1016/j.intell.2020.101491
McLoughlin, S., Tyndall, I., Pereira, A. and Mulhern, T. (2020) Non-Verbal IQ gains from relational operant training explain variance in educational attainment: An active-controlled feasibility study. Journal of Cognitive Enhancement, 5 (1). pp. 35-50. ISSN 2509-3290 10.1007/s41465-020-00187-z
Waldeck, D., Bissell, G. and Tyndall, I. (2020) Experiential avoidance as a moderator for coping with a brief episode of ostracism: A pilot study. Journal of Contextual Behavioral Science, 17. pp. 68-72. ISSN 2212-1447 10.1016/j.jcbs.2020.06.002
McLoughlin, S., Tyndall, I. and Pereira, A. (2020) Relational operant skills training increases standardized matrices scores in adolescents: A stratified active-controlled trial. Journal of Behavioral Education, 31 (2). pp. 298-325. ISSN 1053-0819 10.1007/s10864-020-09399-x
Waldeck, D., Banerjee, M., Jenks, R. and Tyndall, I. (2020) Cognitive Arousal Mediates the Relationship between Perceived Ostracism and Sleep Quality but it is not Moderated by Experiential Avoidance. Stress and health: Journal of the International Society for the Investigation of Stress, 36 (4). pp. 487-495. ISSN 1532-2998 10.1002/smi.2946
Tyndall, I., Waldeck, D., Pancani, L., Whelan, R., Roche, B. and Dawson, D. (2019) The Acceptance and Action Questionnaire-II (AAQ-II) as a measure of experiential avoidance: Concerns over discriminant validity. Journal of Contextual Behavioral Science, 12. pp. 278-284. ISSN 2212-1447 10.1016/j.jcbs.2018.09.005
McLoughlin, S., Tyndall, I., Mulhern, T. and Ashcroft, S. (2019) Technical Notation as a Tool for Basic Research in Relational Frame Theory. The Psychological Record. ISSN 0033-2933 10.1007/s40732-019-00344-7
Gladwin, T. E., Möbius, M., McLoughlin, S. and Tyndall, I. (2019) Anticipatory versus Reactive Spatial Attentional Bias to Threat. British Journal of Psychology, 110 (1). pp. 3-14. ISSN 0007-1269 10.1111/bjop.12309
Waldeck, D., Pancani, L. and Tyndall, I. (2019) An examination of the Construct Validity of the Generalized Pliance Questionnaire. Journal of Contextual Behavioral Science, 11. pp. 50-54. ISSN 2212-1447 10.1016/j.jcbs.2018.12.003
Tyndall, I., Waldeck, D., Pancani, L., Whelan, R., Roche, B. and Pereira, A. (2018) Profiles of Psychological Flexibility: A Latent Class Analysis of the Acceptance and Commitment Therapy model. Behavior Modification. ISSN 0145-4455 10.1177/0145445518820036
Tyndall, I., Waldeck, D., Pancani, L., Whelan, R., Roche, B. and Pereira, A. (2018) Profiles of psychological flexibility: A latent class analysis of the Acceptance and Commitment Therapy model. Behaviour Modification. ISSN 1552-4167 10.1177/0145445518820036
Waldeck, D., Pancani, L. and Tyndall, I. (2018) An examination of the construct validity of the Generalized Pliance Questionnaire. Journal of Contextual Behavioral Science. ISSN 2212-1447 10.1016/j.jcbs.2018.12.003
Cummins, J., Tyndall, I., Curtis, A. and Roche, B. (2018) The Function Acquisition Speed Test (FAST) as a measure of verbal stimulus relations in the context of condom use. The Psychological Record. pp. 1-9. ISSN 0033-2933 10.1007/s40732-018-0321-0
McLoughlin, S., Tyndall, I. and Pereira, A. (2018) Piloting a Brief Relational Operant Training Program: Analyses of Response Latencies and Intelligence Test Performance. European Journal of Behaviour Analysis. ISSN 1502-1149 10.1080/15021149.2018.1507087
Colbert, D., Tyndall, I., Roche, B. and Cassidy, S. (2018) Can SMART training really increase intelligence? A replication study. Journal of Behavioral Education. pp. 1-23. ISSN 1573-3513 10.1007/s10864-018-9302-2
Cummins, J., Roche, B., Tyndall, I. and Cartwright, A. (2018) The relationship between differential stimulus relatedness and implicit measure effect sizes. Journal of the Experimental Analysis of Behaviour, 110 (1). pp. 24-38. ISSN 1938-3711 10.1002/jeab.437
Tyndall, I., Ragless, L. and O'Hora, D. (2018) Effects of Perceptual Load and Socially Meaningful Stimuli on Crossmodal Selective Attention in Autism Spectrum Disorder and Neurotypical samples. Consciousness and Cognition, 60. pp. 25-36. ISSN 1053-8100 10.1016/j.concog.2018.02.006
Tyndall, I., Waldeck, D., Riva, P., Wesselmann, E. D. and Pancani, L. (2018) Psychological flexibility and ostracism: Experiential avoidance rather than cognitive fusion moderates distress from perceived ostracism over time. Journal of Contextual Behavioral Science, 7. pp. 72-80. ISSN 2212-1447 10.1016/j.jcbs.2018.02.001
Waldeck, D., Tyndall, I., Riva, P. and Chmiel, N. (2017) How do we cope with ostracism? Psychological flexibility moderates the relationship between everyday ostracism experiences and psychological distress. Journal of Contextual Behavioral Science, 6 (4). pp. 425-432. ISSN 2212-1447 10.1016.j.jcbs.2017.09.001
Tyndall, I., Papworth, R. N., Roche, B. and Bennett, M. (2017) Differential Effects of Word-Repetition Rate on Cognitive Defusion of Believability and Discomfort of Negative Self-Referential Thoughts Postintervention and at One-Month Follow-Up. The Psychological Record. pp. 1-10. ISSN 0033-2933 10.1007/s40732-017-0227-2
Tyndall, I., Howe, B. and Roche, B. (2016) Exposure to Progressive Muscle Relaxation leads to Enhanced Performance on Derived Relational Responding Tasks. The Psychological Record, 66 (2). pp. 213-222. ISSN 0033-2933 10.1007/s40732-016-0163-6
Waldeck, D., Tyndall, I. and Chmiel, N. (2015) Resilience to Ostracism: A Qualitative Inquiry. The Qualitative Report, 20 (10). pp. 1646-1670.
O’Hora, D. P., Tyndall, I., McMorrow, M. and Dale, R. A. C. (2013) Using action dynamics to assess competing stimulus control during stimulus equivalence testing. Journal of Learning & Behavior. ISSN 1543-4508 10.3758/s13420-013-0102-1
O'Reilly, A., Roche, B., Ruiz, M., Tyndall, I. and Gavin, A. (2012) The Function Acquisition Speed Test (FAST): A behavior-analytic implicit test for assessing stimulus relations. The Psychological Record, 62 (3). ISSN 0033-2933
Tyndall, I., Roche, B. and James, J. E. (2009) The Interfering Effect of Emotional Stimulus Functions on Stimulus Equivalence Class Formation: Implications for the Understanding and Treatment of Anxiety. European Journal of Behaviour Analysis, 10. pp. 121-140. (Submitted)
Tyndall, I., Roche, B. and James, J. E. (2009) The interfering effect of emotional stimulus functions on stimulus equivalence class formation: Implications for the understanding and treatment of anxiety. European Journal of Behaviour Analysis, 10 (2). pp. 215-234. ISSN 1502-1149
