Dr. Mercer conducted an investigation into the effectiveness of systematic desensitisation for aviophobia (fear of flying) using a virtual reality simulator. To assess progress, she measured the heart rate (in beats per minute) of 12 participants at the start of each of the 8 stages of the anxiety hierarchy using a standardized, automated chest-strap heart rate monitor.
Explain one strength of Dr. Mercer's study in terms of reliability.
205 exam-style questions on Edexcel A Level Psychology Content, covering Main features of classical conditioning, Pavlov (1927) salivation in dogs, Main features of operant conditioning, Properties of reinforcement, Behaviour modification and shaping, Main features of social learning theory, Social learning stages, Bandura (1961, 1963) Bobo doll experiments, Bandura (1965) vicarious reinforcement, Learning theories and phobias, Treatments for phobias, Individual differences, and Developmental psychology. Each one has a worked solution and a mark scheme showing where the marks go.