When chance events are recorded, we find that some outcomes have a high probability and occur very often, others have a lower probability and occur infrequently, still others have little probability and occur rarely. As a result, the distribution (or tally) of chance events typically resembles a
a. normal curve.
b. positive skew.
c. negative skew.
d. horizontal line.
A
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The “magic number 7 plus or minus 2” was first identified by psychologist ____
a. ?Alan Baddeley b. ?George Sperling c. ?George Miller d. ?Richard Atkinson
What is true of the blood-brain barrier?
A. It is a valve-like structure that prevents the peripheral blood from mixing with the cerebrospinal fluid. B. It requires special transporters to move amino acids and vitamins into the brain. C. It is formed by pores in the blood vessel walls that control which molecules can pass through. D. It does not allow lipid-soluble drugs to enter the brain.
A list of personality traits or aspects of behavior that is utilized when conducting direct observation is known as a
a. projective test. b. situational profile. c. personality questionnaire. d. rating scale.
Loudness is determined by the _____ of a sound wave.
A) amplitude B) frequency C) purity D) timbre