If other factors are held constant, which of the following sets of data would produce the largest value for an independent-measures t statistic?
A) ?The two samples both have n = 15 with sample variances of 20 and 25.
B) ?The two samples both have n = 15 with variances of 120 and 125.
C) ?The two samples both have n = 30 with sample variances of 20 and 25.
D) ?The two samples both have n = 30 with variances of 120 and 125.
C
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Who discovered that the retina, not the lens, is the light sensitive part of the eye and that inoculation might prevent disease?
a. Avicenna b. Averroës c. Maimonides d. St. Anselm
Why does inviting speculation elicit false statements from children?
A. The child feels like their first answer was wrong and so changes it. B. The child can obey the interviewer and still feel that he/she did not lie. C. The child feels like they will be punished if they do not answer "right." D. The child feels pressure to conform.
Adults with high efficacy expectations tend to:
a. select problem-solving tasks that are very easy to do b. opt for challenging tasks which provide an opportunity for developing new skills c. choose tasks that are impossible to complete d. choose ambiguous tasks that can be solved only by children.
According to Viorst, loss and mourning are
a. difficult at first, but one learns to adapt to them with greater ease as one ages. b. easier to bear if one has the proper training. c. experienced in the same ways by every person. d. a lifelong human condition.