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Research Methods – Good Scientific Practice

4. Theory Construction

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In this lecture, we think about theory construction, focusing in particular on: (i) paradigms as a method of moving from idea generation to testing a theory and informing its construction; (ii) the objective testing and statistical analyses required to confirm a hypothesis; (iii) establishing an actual theory as the final process in theory construction; (iv) paradigm shifts as key points in the history of science which have uprooted existing ideas and made way for new theories; (v) an example of a paradigm shift in psychology, when the multi-store model was uprooted in favour of the levels of processing approach.


In this course, Dr Ashok Jansari (Goldsmiths, University of London) explores how researchers report good (or sometimes not good) science. In the first lecture, we think about the three main forms of validity: face, concurrent, and ecological. In the second lecture, we think about the three main forms of reliability: test-retest, inter-rater, and internal. In the third lecture, we think about features of science and how the empirical method can promote good scientific practice. Next, we think about theory construction and the process that a good researcher will follow to work from their initial idea towards their finished theory. In the fifth and final lecture, we think about scientific reporting and the five key sections of a report which adheres to the American Psychological Association (APA) standard.


Dr Ashok Jansari is a senior lecturer in the Department of Psychology at Goldsmiths, University of London. Dr Jansari’s research interests include memory disorders, prosopagnosia, executive functions, and synaesthesia. Dr Jansari is most famous for his research into prosopagnosia, having made numerous TV appearances, including on BBC1’s The One Show, as well as hosting his own ‘Neuro Talk’ YouTube channel:

Some of Dr Jansari's recent publications include 'Acquired synaesthesia following 2C-B use' (2019), 'Using virtual reality to investigate multitasking ability in individuals with frontal lobe lesions' (2019), and 'Identification from CCTV: Assessing police super-recogniser ability to spot faces in a crown and susceptibility to change blindness' (2018).

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APA style

Jansari, A. (2022, March 07). Research Methods – Good Scientific Practice - Theory Construction [Video]. MASSOLIT.

MLA style

Jansari, A. "Research Methods – Good Scientific Practice – Theory Construction." MASSOLIT, uploaded by MASSOLIT, 07 Mar 2022,

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