______ sampling occurs when participants are considered to be unusual.
A. Snowball
B. Extreme case
C. Maximum variation
D. Negative case
Ans: B
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Research shows that children whose families have few material resources may show lower levels of cognitive development ______.
a. by the time they reach kindergarten b. just after birth c. as early as 18–24 months d. no sooner than their second birthday
The Differential Aptitude Tests can be used to compare student's scores in different aptitude areas because the subtests are
A. highly intercorrelated. B. speeded tests. C. standardized on the same group. D. valid and reliable.
Which of the following is NOT an example of formative evaluation?
A. Observations B. Checklists C. Standardized tests D. Practice activities
Frank has an assertive communication style. This means he is likely to
A. use sarcasm. B. be direct with people. C. say yes when he really means no. D. resent situations.