Which of the following research scenarios is most likely to have been compromised by demand characteristics?
On an anonymous questionnaire about ethical consumerism, participants reported buying organic produce far more frequently than their actual shopping receipts showed.
The primary investigator unconsciously used a warmer, more encouraging tone of voice when guiding participants through the experimental condition compared to the control condition.
During a study on cognitive focus, participants noticed the experimental hypothesis written on an open folder and subsequently performed worse on the noisy task to help confirm the researcher's theory.
In a repeated measures study on reaction times, participants showed much faster responses in the afternoon session because they had already practiced the motor task in the morning.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.