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 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.
