Felipe is practicing lifting weights. He picks up a 30-pound weight, and his forearm moves steadily downward as he struggles to hold it. Luckily, biology takes over and his arm eventually pulls the weight up. What process is at work here?
A. Monosynaptic stretch reflexes caused the counteracting muscle firing to take place.
B. Beta motor neurons sent a message to Felipe's arm to flex his muscle.
C. Polysynaptic reflexes energized contractions in Felipe's upper body.
D. The reticular formation relayed messages from the arm to the prefrontal cortex.
Answer: A
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A. achieving stage B. acquisitive stage C. executive stage D. responsible stage
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The method for estimating the internal consistency of a test that simultaneously considers all possible ways of splitting the items is the
a. Spearman Brown formula. b. Kuder-Richardson formula. c. Cronbach's alpha. d. the odd-even method.
When educational administrators use test scores for accountability purposes, they are using test scores to
a. inform public policy and evaluation programs. b. determine positive or negative consequences for individuals. c. substantiate initiating, continuing, modifying, terminating, or expanding programs. d. provide benchmark data and monitor student progress over time.