Approximately 68% of a normal distribution of test scores falls between a z score range of
A) -2.0 to +2.0. B) -1.0 to +1.0. C) -.5 to +.5. D) -1.5 to +1.5.
B
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A population of N = 10 scores has a standard deviation of ? = 2 . What is the value of SS, the sum of the squared deviations, for this population?
a. 40 c. 4 b. 20 d. 2
A vertical line drawn through a normal distribution at z = –0.50 separates the distribution into two sections. The proportion in the larger section is 0.6915
Indicate whether the statement is true or false
According to Adler, the core of each person's style of life is formed by age
A) ?three. B) ?five. C) ?eight. D) ?eleven.
What is the general age-related pattern of creativity when defined by the overall number of ideas an individual generates?
a. Lower in one's 30s, higher in one's 40s, and peaks thereafter b. High in one's 30s, higher in one's 40s, and peaks thereafter c. Lower in one's 30s, higher in one's 40s, and declines thereafter d. Higher in one's 30s, lower in one's 40s, and declines thereafter