Transvestism is an example of a sexual variant

One of the advantages of the longitudinal design is that

a. the results can be generalized widely to various cohorts. b. data are not likely to be lost due to participant attrition. c. all participants have lived through the same socioeconomic period. d. researchers do not need to keep track of participants over extended time periods.

About what proportion of the people in Milgram's obedience study administered the highest level of shock?

a. two-thirds b. one-half c. one-third d. one-tenth