The researcher has two reliability coefficients from past sample scores. The KR-20 reliability coefficient is .62 and the split-half reliability coefficient is .78 . What does the researcher possibly need to be aware of?
a. Speededness
b. Length
c. Variability in scores
d. Sample size
a
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Exhibit 1-3. Each answer option lists an attitude expected of scientists. Indicate which attitude is violated in each statement. All schools should adopt block scheduling
a. The scientist deals with facts, not values. b. The scientist is objective and impartial. c. The scientist maintains a skeptical attitude and regards findings as tentative. d. The scientist seeks to integrate and systematize findings into theory. e. The scientist makes procedures known so other scientists can verify findings.
Which test is best when used as a curriculum guide and an informal checklist of skills rather than a formal diagnostic instrument?
A. Battelle Developmental Inventory, Second Edition B. Brigance Early Childhood Developmental Inventory C. Learning Accomplishment Profile, Third Edition
Reading in mathematics textbooks
a. involves mostly general vocabulary. c. involves a highly compressed system of language. b. makes little use of graphic aids. d. is easy because it uses more numbers and symbols than connected words.
Ignoring is the best method to use to decrease aggressive behavior
Indicate whether this statement is true or false.