As opposed to reliability based on the classical test theory, ____ focuses on the range of item difficulty that is useful in assessing an individual's ability
a. domain sampling
b. internal consistency
c. coefficient alpha
d. item response theory
d
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David and Alexandra both take part in a research study that is investigating the effects of sleep deprivation on reaction time. David is kept awake for 24 hours straight, while Alexandra follows her normal sleep routine. In this study, David is part of the
a. hypothesis group. b. experimental group. c. control group. d. dependent variable group.
A person may be resuscitated and suffer little damage if her or his heart has stopped beating and breathing has stopped for as long as how many minutes?
A. 15 minutes B. 10 minutes C. 8 minutes D. 5 minutes
At approximately what age do girls and boys tend to understand the concept of gender constancy?
A. 4 or 5 years B. 2 or 3 years C. 8 or 9 years D. 1 or 2 years
Neurons that are at rest are still electrically charged
Indicate whether the statement is true or false.