On a test of academic ability, most students get consistent scores from test to retest, but their scores do not predict their school performance. What can we say about the reliability and validity of the test?
a. The reliability and validity are both high.
b. The reliability is low but the validity is high.
c. The reliability is high but the validity is low.
d. The reliability is high but the validity is unknown.
c
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The difference between a normal distribution and a standard normal distribution is
a. standard normal distributions are more symmetric. b. normal distributions are based on fewer scores. c. standard normal distributions always have a mean of 0 and a standard deviation of 1. d. there is no difference.
Which of the following children is demonstrating relational aggression?
A) Taylor just hit Abby after Abby took her favorite toy. B) Grayson bangs his head against the wall after getting punished. C) Jessica just called her sister Samantha a "spoiled brat." D) Maddy is crying after her brother Landon pulled her hair.
The fact that only humans acquire language in the normal course of development indicates that language is:
What will be an ideal response?
Bodybuilders show off their muscles by
a. activating their autonomic nervous system. b. willing the activation of their extensor muscles. c. willing the activation of their flexor muscles. d. simultaneously contracting their flexor and extensor muscles. e. ingesting large amounts of sympathomimetic drugs.