The best description of volunteer bias is _____.
A. some volunteers are too young to participate in research
B. some types of people are more willing to participate in a research study than others
C. volunteers bring their attitudes and stereotypes to the experiment
D. letting people choose whether to be in the experimental or control group leads to problems
Answer: B
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Which of the following statements is true of stereotypes?
a) Stereotypes based on some degree of factual observation are called sociotypes. b) Stereotypes cannot be perpetuated without direct observation of the behaviors of others. c) People cannot have stereotypes about their own group. d) Positive stereotypes are relatively easy to develop due to cultural factors.
According to Erikson, an adolescent who fails to develop more purposeful, responsible, adult-like behaviors will experience:
A. role confusion B. egocentric thinking C. a justice orientation D. postconventional moral reasoning
MDMA may be useful in some types of therapy.
Answer the following statement true (T) or false (F)
Walking delayed two or more years, short stature, slow speech development, and prominent anatomical features such as close-set eyes; short, thick neck; and small, rather square head are symptoms and signs of
A. HIV-infected children B. Trisomy 21 C. Down syndrome D. HIV-infected children AND Trisomy 21 E. Trisomy 21 AND Down syndrome