We use the example of Bransford and Johnson’s (1972) study extensively in Unit 9 of this book (“Internal assessment”). It would be useful to know details about the study and familiarize yourself with the original paper published in the Journal of Verbal Learning and Verbal Behaviour The paper can be accessed here: https://

tinyurl.com/kp479dh Read the paper and nd out what confounding variables the authors controlled and how.