A sample of n = 25 scores produces a t statistic of t = 2.062 . If the researcher is using a two-tailed test, which of the following is the correct statistical decision?
a. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01.
b. The researcher can reject the null hypothesis with either ? = .05 or ? = .01.
c. The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01.
d. It is impossible to make a decision about H0 without more information.
C
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You like to fish. Sometimes, it takes you 30 minutes to catch a fish; other times, you catch a fish every 5 minutes. Fishing, in this case, is on a ____ schedule of reinforcement.
A. fixed-interval B. fixed-ratio C. variable-interval D. variable-ratio
Which of the following statements is true of the hearing capability of newborns?
A) They can hear well when they are born. B) They cannot hear well until they are three months old. C) They prefer their father's voice to those of other men. D) They do not show a particular preference for their mother's voice.
Research that demonstrated that Black children often preferred playing with a White doll than a Black doll was cited in Brown v. Board of Education of Topeka, in which the Supreme Court ruled that segregation of public schools was unconstitutional. Who conducted this research?
a. ?Martin Seligman and Ed Diener b. ?Kenneth Clark and Mamie Phipps Clark c. ?Abraham Maslow and Carl Rogers d. ?Abraham Maslow and Carl Rogers
In family counseling, circular questioning is used to
a. Help the counselor formulate a hypothesis b. Highlight the differences in perspective among family members c. Create a more comprehensive understanding of the family system d. All of the above