What is the normal portion of sleep time spent in REM sleep in adults?
a. 5%
b. 10%
c. 25%
d. 50%
c
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Perception occurs:
A. after the rods and cones become activated B. when a stimulus activates a receptor, causing an impulse that is processed by the brain C. after meaningful combinations of sensory experiences are created D. before transduction
Russell's mom wants him to study for two hours each night, so she gives him treats during the evening. Sometimes she gives him the treats after ten minutes, sometimes after thirty minutes. On the average, Russell is given a treat every twenty minutes. Which reinforcement schedule is Russell's mom utilizing??
a. ?fixed-ratio b. ?variable-ratio c. ?fixed-interval d. ?variable-interval
Treatment methods that survive experiments in which participants are assigned at random to a specific treatment or to a control treatment are called _____ _____
Fill in the blank(s) with correct word
Recent historical reviews of the literature indicate that the typical accused witch in the Middle Ages in
Europe was A) a priest who was a rival of a more powerful priest. B) a person we would now consider to have a mental illness. C) a person we would now consider to have mental retardation. D) an ill-tempered, impoverished woman.