Without the manipulation of a(n) ______ variable, it is very difficult to rule out other possible factors as causes of a change in the ______ variable.
a. dependent; independent
b. independent; dependent
c. dependent; confounding
d. confounding; independent
Ans: B
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After 5 points are subtracted from every score, the sample mean is found to be M = 24 . What was the mean for the original sample?
a. 29 b. 24 c. 19 d. Cannot determine without knowing the number of scores in the sample
Lewis Terman recommended that IQ scores be used to:
A. weed out potential teachers with low IQ's B. prevent retarded people from marrying C. place people in various occupational classes D. regulate immigration
What disorder is characterized by the behavioral problems of inattention and excessive activity and can be treated with Ritalin?
A. conduct disorder B. learning disability disorder C. attention-deficit hyperactivity disorder D. autism
Ed and Jane have been married for 40 years and hope they can be married for another "40.". They love traveling together since their retirement and have many interests and hobbies in common. Since they retired, both say "it is like being on a second honeymoon" as the passion of their "younger days" has been rekindled. According to Robert Sternberg, which type of love do Ed and Jane possess?
a. fatuous love b. companionate love c. consummate love d. romantic love