In a study with more than two levels of the independent variable, comparisons of pairs of means that are planned before the study is performed are called:
a. post hoc tests.
b. F tests.
c. pretests.
d. a priori tests.
D
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Children, regardless of culture or language, do not differ in regard to the ____ of stages in language acquisition.
A. speed B. order C. development D. age
What are we stating if we reject the null hypothesis for the independent-samples t-test?
a. The sample mean difference represents no difference between two population ?s. b. The sample mean difference represents a difference between two population ?s that is not zero. c. The sample mean difference is zero. d. The difference between the population means is zero.
In which component of emotion might we experience fear, happiness, or disgust?
a. having subjective feelings b. experiencing a physiological response c. a change in heart rate and breathing d. interpreting or appraising some stimulus
Dreams are most vivid during
a. REM sleep. c. the hypnagogic state. b. NREM sleep. d. none of these.