What conclusion is appropriate if a chi-square test produces a chi-square statistic near zero?
A) There is a good fit between the sample data and the null hypothesis.?
B) ?There is a large discrepancy between the sample data and the null hypothesis.
C) ?All of the expected frequencies must also be close to zero.
D) ?The researcher made a mistake because chi-square can never be close to zero.
A
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In 2013, the most common media used by children ages 5 to 8 in 2013 were
a. television and video games. b. computers and smartphones. c. television and music. d. television and computers.
A rat is conditioned to press a lever for food. One day a food pellet jams in the automatic feeder and the rat no longer receives food after pressing the lever. After a few minutes, the rat eventually stops pressing the lever. This is an example of:
a. negative reinforcement. b. extinction. c. classical conditioning. d. avoidance learning.
The tendency to give too much emphasis to personal factors when accounting for other people's actions is called _______
a. the primacy effect b. defensive attribution c. fundamental attribution error d. the just world hypothesis
The notion that quality of life is a subjective experience assumes that ______.
A. patients may provide the most valid assessments of their quality of life B. reliable and valid measures will never be developed C. psychosocial and economic factors must be considered instead of measures of physiological functioning D. quality of life is independent of changes in chronic illness and its treatment