A psychologist designs a new self-report questionnaire to measure academic anxiety in A-level students. To assess the questionnaire, she administers it to a sample of 50 students. On the same day, she also administers an established, highly validated clinical anxiety scale to the same students. After calculating a correlation coefficient between the two sets of scores, she finds a strong positive correlation (r=0.89r = 0.89r=0.89).
Which of the following has the psychologist established?
High test-retest reliability
High concurrent validity
High inter-rater reliability
High face validity
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.