A researcher conducts a study using a repeated-measures design. To analyze the data, they calculate the difference between each participant's scores across the two conditions, rank the absolute values of these differences, sum the ranks of the positive and negative differences separately, and use the smaller sum as the calculated test statistic. Which inferential statistical test has been described?
Mann-Whitney U test
Wilcoxon Signed Ranks test
Sign test
Related t-test
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.