Which of these sets of sample characteristics is most likely to produce a statistically nonsignificant value for the independent samples t test statistic?

a. a small mean difference and small sample variances
b. a large mean difference and small sample variances
c. a small mean difference and large sample variances
d. a large mean difference and large sample variances


Ans: C

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Schemes may be changed or modified through:

A. accounting B. assimilation C. accommodation D. b and c only

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A correlational study examined the relationship between a large group of students' overall achievement and their level of self-confidence. The results were reported as statistically significant (r = .17, p. = .01). With what should you be concerned?

a) The theoretical importance of this study b) The lack of statistical significance of the results c) The lack of practical significance of the results d) The sample size

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The level of support an adolescent receives is in direct correlation to the type of behavior the adolescent exhibits

Indicate whether the statement is true or false

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Young children gradually acquire audience awareness, which means that they

a. appreciate that the stories they tell or dictate are a form of communication that should make sense to others. b. begin to learn acting skills. c. learn to keep quiet when others are talking. d. All of these answers.

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