A researcher has conducted an experiment in which she
assigned all of her students four hours of homework the night before a test, in order to see what effect the extra stress has on test performance. The study is flawed because the researcher did not include a(n) _____
a) control group.
b) experimental group.
c) independent variable.
d) random sample.
Answer: a
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Which of the students provides the best summary of the two terms, "puberty" and "adolescence," as applied to females?
a. Cyndie: "Puberty refers to psychological changes, whereas adolescence refers to sexual changes.". b. Ulman: "Puberty refers a female's first menstrual period, whereas adolescence refers to psychological changes.". c. Tori: "Puberty refers to the physical changes that are related to sexual maturity, whereas adolescence refers to psychological changes.". d. Gustavo: "Puberty is a general term, referring to both physical and psychological changes, whereas adolescence refers to people who are between 13 and 20 years old.".
Because most people drink in moderation, alcohol abuse is not a major health problem in the United States
Indicate whether this statement is true or false.
An important recommendation from the Alameda County study emphasizes _______, which may allow individuals to cope better with stressful situations
A) ?social support B) ?drinking C) ?exercise D) ?both a and c
If you feel warm in your room and prefer the temperature to be about 5 degrees cooler, your ideal temperature would be your
a. system variable. b. detector. c. set point. d. correctional mechanism. e. homeostatic variable.