A ________ is a set of facts and relationships between facts that can be used to explain and predict phenomena.
A. concept
B. theory
C. hypothesis
D. algorithm
Ans: B. theory
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According to recent research findings, REM sleep appears to be necessary to
A. maintain one's mental health. B. guard against serious psychological disturbances. C. prepare us for dealing with anxiety-arousing events. D. all of the above
Baseline is to treatment as _____ is to _____
a. dependent variable; independent variable b. independent variable; dependent variable c. control group; experimental group d. experimental group; control group
If you decrease your alpha level from .05 to .01, you have
a. Also decreased the power of the test b. Increased the probability that you will make a Type I error c. Altered your effect size d. Effectively decided to test more people
Every 50 minutes, the class takes a break if their behavior is appropriate. They are on a ____ schedule of reinforcement
a. variable-interval c. variable-ratio b. fixed-interval d. fixed-ratio