All of the following are true for both the t test for independent means and the t test for dependent means EXCEPT

A) population variances are estimated from the information in the sample of scores actually studied.
B) pretest–posttest experimental designs are common.
C) the population means are unknown.
D) the sample scores in some form are eventually compared to a t distribution.


Answer: B

Sociology

You might also like to view...

Juan and Tracey, in the opening vignette, are an example of:

a) a same-sex couple raising children. b) parents who adopted two children after experiencing infertility. c) divorced parents who share custody of their child. d) parents who are raising eleven children. e) a couple who are childfree by choice.

Sociology

American norms of marriage specify that:

a. the husband ought to be the primary earner. b. wives have a moral obligation to be employed. c. household tasks should be shared equally. d. wives ought not to be employed.

Sociology

Conflict theorists view gender differences as

A. unrelated to the overall exploitation and injustice found in capitalist societies. B. a reflection of the subjugation of one group, such as women, by another group, such as men. C. unnecessary in order to accomplish what needs to get done. D. necessary for the effective accomplishment of family and societal tasks.

Sociology

Amanda likes to go out to parties and often leaves her 10-year-old daughter at home to watch her 6-year-old daughter unassisted. If she comes home to a mess, Amanda gets angry at her older daughter. What parenting style is Amanda illustrating?

a. indulgent b. authoritarian c. emotional neglect d. authoritative

Sociology