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Issues and Debates – The Replication Crisis

1. Defining Psychology as a Science

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About this Lecture

Lecture

This first lecture introduces a number of studies and their results, posing the question of whether you would expect the results found to occur again if the study was repeated. After introducing this idea of replicability, Dr Bouguettaya unpacks the concept of psychology as a science, starting by outlining Sir Karl Popper’s scientific definition and focusing on the importance of a null hypothesis in this description. The lecture then moves on to define science in terms of three criteria: reliable and valid theory which can predict outcomes, theories that can potentially be disproven by quantifiable experimentation, and theories that can be altered or withdrawn in the light of new findings.

Course

In this course, Dr Ayoub Bouguettaya (University of Birmingham) explores a key shortcoming in the field of psychological science – replication. The course starts by introducing the concept of replication and defining science in terms of three key criteria: reliable and valid theory which can predict outcomes, theories that can be disproven by quantifiable experimentation, and theories that are altered or withdrawn in the light of new findings. Lecture two explores reliability and outlines three core issues facing psychological science: quantifiable measures, theories that cannot be disproven, and unrefined theories. Lectures three and four explore the definition of validity, its variety of forms, and the challenges associated with formulating valid research. The fifth lecture highlights the interrelatedness of validity and reliability, as well as returning to this idea of replication and the many famous studies which have failed either conceptual or exact replication. The sixth and final lecture addresses the ways in which the field of psychology is tackling these problems and concludes on two different perspectives on whether psychology can be considered a true science.

Lecturer

Dr Ayoub Bouguettaya is a lecturer in the School of Psychology at the University of Birmingham. His research centres around social psychology and how knowledge from that field can be applied to others, particularly health. Dr Bouguettaya is interested in how we can apply social identity theory to societal problems, as well as investigating the different perspectives one might taken on those issues. His recent publications have spanned a breadth of topics including social identification, eating behaviours, conspiracy theories, and behavioural economics.

Cite this Lecture

APA style

Bouguettaya, A. (2021, November 24). Issues and Debates – The Replication Crisis - Defining Psychology as a Science [Video]. MASSOLIT. https://massolit.io/courses/issues-and-debates-the-replication-crisis/defining-psychology-as-a-science

MLA style

Bouguettaya, Ayoub. "Issues and Debates – The Replication Crisis – Defining Psychology as a Science." MASSOLIT, uploaded by MASSOLIT, 30 Nov 2021, https://massolit.io/courses/issues-and-debates-the-replication-crisis/defining-psychology-as-a-science