Dr. Henderson conducted a study monitoring the anxiety levels of 24 participants undergoing systematic desensitisation for a severe fear of flying (aerophobia). She used a calibrated electronic heart rate monitor to record each participant's beats per minute (bpm) at the exact moment they completed each level of their fear hierarchy.
Explain one strength of Dr. Henderson's study in terms of reliability.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Issues around drug taking, Biological explanations of drug addiction, Learning explanations of drug addiction, Treatments for drug addiction, Anti-drug campaign and strategies, 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.
