What is pooled variance?
a. The weighted average of the sample variances
b. The variance of the difference between the sample means
c. The sum of the two sample variances
d. The variance of the populations from which the samples were drawn
a
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When her students are first learning algebra, math teacher Ruth Dibble teaches the students a series of step-by- step rules for working with algebraic equations. What is Ms. Dibble teaching her students?
a. insight strategies b. algorithms c. heuristics d. natural concepts e. logical concepts
If a person exhibits emotional shallowness in relationships and a disregard for social and moral standards, this person would most likely have a high score on which clinical subscale of the MMPI-2?
a. psychopathic deviate b. schizophrenia c. psychasthenia d. hysteria
During the recital, Eva's performance on the simple piece improved, but performance of the difficult piece suffered. What best describes this phenomenon?
A. evaluation apprehension hypothesis B. mere presence hypothesis C. optimal distinctiveness D. comparative social psychology
Which factor that affects happiness accounts for 40% of our total happiness by itself?
a. heredity b. life circumstances c. our behaviors and actions d. genetics