Approximately __________ percent of cases of intellectual disability have no known cause.

A. 1
B. 10
C. 30
D. 50


Answer: D

Psychology

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In a well-designed experiment, all participants must

a. be treated in exactly the same manner except for the specific differences the experimenter wants to create. b. not realize that they are involved in an experiment. c. be influenced by experimenter expectancy effects. d. be allowed to choose their own experimental conditions without interference or bias from the experimenter.

Psychology

Two alien species meet for the first time. Their governments set up a program in an attempt to prevent prejudice and racism. Based on the contact hypothesis, they decide that participants in the new program will be of equal socioeconomic status. In addition, teams consisting of members of both species will have to solve problems that require cooperation. To make the program a success, the

government leaders should also ____.? a. ?provide a role model who displays unprejudiced behavior b. ?make sure that all participants do not have authoritarian personalities c. ?tell the participants that the two species have a shared enemy d. ?make sure that the individuals in each group get to know each other one-on-one

Psychology

Automaticity involves:

a. slow, effortful processing that requires focused attention b. fast, effortless processing that does not require focused attention c. subconscious processing of information that is not important d. focusing conscious attention on new and demanding tasks

Psychology

A combination of positive affect (in the absence of negative affect) and general life satisfaction is the definition of what term?

A. joy B. subjective well-being C. happiness D. complete mental health

Psychology