Which of the following expresses a true distinction regarding the current state of research into the effects of lead exposure on mental functioning and health?
a) High levels of lead exposure has been definitively linked to mental retardation, while the effects of low-level, asymptomatic exposure are more contradictory.
b) High levels of lead exposure has been definitively linked to mental retardation, while there is no evidence that low-level, asymptomatic exposure can harm intelligence.
c) High levels of lead exposure has been linked to mental retardation in children, while low-level, asymptomatic exposure has been linked to decrements in IQ in adults.
d) High levels of lead exposure has been linked to mental retardation, while low-level, asymptomatic exposure has been linked to behavioral problems.
a
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A new supervisor gives his subordinates lenient work evaluations in the hopes that they will like him. This is an example of (the)
a) rater bias. b) halo effect. c) criterion contamination. d) context error.
Levinger’s (e.g., 1965) marital cohesiveness model proposes that relationship stability is a function both of _______ and _______.
a) inducements to remain;inducements to leave b) satisfaction; investment c) comparison level; comparison level for alternatives d) commitment; cohesiveness
Factors other than the survey by itself can influence responses. For example, the gender or ethnicity of an interviewer may influence participants. These factors are known asÂ
A. internal factors. B. reliability factors. C. extraneous factors. D. validity re-test factors.
Which of the following is true of FemCap?
A. It is made of silicone. B. It is made of polyurethane. C. It works like the other progestin-only methods. D. It eliminates the use of spermicides and microbicides.