Assume that we asked 20 subjects to participate in a smoking cessation study. We recorded their craving for a cigarette before and after applying a nicotine patch. One reason we might want to use a distribution-free test is because
a. we have too few subjects for a parametric test.
b. there are some outliers that we don't want to have undue influence on the results.
c. the data are normally distributed.
d. the subjects are all male.
Question 2
When we have relatively large sample sizes, the distribution-free tests for comparing two groups or sets of data discussed in the text have
a. a chi-square approximation.
b. a normal approximation.
c. no solution.
d. problems.
Adolescent females who participate in activities such as ballet are at risk for eating disorders
Results of the study by Laruelle et al. (1996)
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
Jacques-Louis David, Study for the Death of Socrates.
Case Study of a Midlatitude Cyclone
These findings are from Colby and Kohlberg's long-term longitudinal study