You Want to Know If Part-Time Employees Become More or Less

Multiple Choice

You want to know if part-time employees become more or less happy with their employment over time.Thus,you give a questionnaire to 100 new hires and four months later give the same questionnaire to the same employees.What type of research design have you used?

A) longitudinal design
B) quasi-experimental design
C) cross-sectional design
D) obtrusive methods observational design