Dr. Vance conducted an experiment at a canine cognitive center to investigate how different schedules of operant reinforcement affect learning rate. He obtained full ethical approval from the university's animal welfare board before commencing. Using a random sampling method, dogs were allocated to either Group 1, which received a food reward on a fixed-ratio schedule (a reward after every 4th target touch), or Group 2, which received a food reward on a variable-ratio schedule (where the number of touches required fluctuated around a mean of 4). Dr. Vance recorded the total number of times each dog touched the target with its nose during a single 12-minute session.
Identify the independent variable (IV) and the dependent variable (DV) in this study.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Bowlby's work on attachment, Ainsworth and the Strange Situation, Research into deprivation, Research into privation, Research into day care, Cross-cultural research into attachment, Autism, Individual differences, and Developmental psychology, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
