About the lecture

In this lecture, we work through an example of each of the three t-test types, specifically: (i) the one-sample t-test, contextualised here by comparing the test scores of a sample of students to the national average (population mean); (ii) the independent samples t-test, contextualised here by comparing the test scores of two different groups taking the same test; (iii) the paired samples t-test, contextualised here by comparing the scores of one group on two different tests; (iv) the parameters necessary for data to meet, in order for the t-test to be a valid way of assessing that data.

About the lecturer

Dr Andrew Bell is a lecturer in cognitive neuroscience in the Institute of Psychiatry, Psychology and Neuroscience at King’s College London. Dr Bell works in the neuroimaging department and focuses his teaching on statistics and statistical techniques. Dr Bell is a senior fellow of the Higher Education Academy and has published a review of animal lesion techniques used by researchers of human neuropsychology. Dr Bell’s recent publications include ‘Preserved extrastriate visual network in a monkey with substantial, naturally occurring damage to primary visual cortex’ (2019) and ‘Viewing ambiguous social interactions increases functional connectivity between frontal and temporal nodes of the social brain’ (2021).