An occupational psychologist wants to investigate whether there is a difference in productivity between employees who work in open-plan offices and those who work in private cubicles. Two separate groups of 20 employees are monitored. Productivity is assessed by counting the total number of key projects successfully completed by each employee over a six-month period. A preliminary analysis shows that the distribution of projects completed is highly skewed.
Which of the following would be the appropriate inferential test to use to analyse the data from this study?
Wilcoxon Signed Ranks test
Mann-Whitney U test
Unrelated ttt-test
Chi-square 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.