Categorical measures (nonparametric) are best summarized as
A. Median
B. Quartiles
C. Percentiles
D. Proportions
E. Mean
Answer: D. Proportions
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Which set of sample characteristics is most likely to produce a significant value for the independent-measures t statistic and a large effect size?
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
Most contemporary developmental psychologists agree with Piaget that cognitive development involves a series of stages
Indicate whether the statement is true or false
In Freud's conception of psychosexual development, the phallic stage is:
a. the second stage, and it occurs during the 2nd year of life b. the first stage, and it occurs during the 1st year of life c. the third stage, which occurs between the ages of 3 and 5 d. the last stage, which begins with the onset of puberty
Norplant was withdrawn from the U.S. Market in 2002 because ____
a. it was not effective c. there were too many adverse effects b. there were too many lawsuits d. it was not selling well