Factors that threaten ______ validity will vary systematically with the independent variable.
A. internal
B. population
C. external
D. sample
Ans: A,
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These programs are designed to involve and inform parents about activities that will promote their children's literacy learning in school
a. parent involvement initiatives b. early intervention programs c. Reading Recovery program d. intergenerational literacy initiatives
Necessary knowledge differs from "simply true" knowledge in that it
a. describes essential relations between events. b. develops through identifying observable Information. c. does not require causal explanations. d. does not require deduction and universality.
A researcher hypothesizes that freshmen spend more time studying than sophomores, who spend more time studying than juniors, and so on. In conducting a one-way ANOVA with this data, how can the null hypothesis (H0) be stated?
a. H0: all ?s are different b. H0: not all ?s are different c. H0: all ?s are equal d. H0: not all ?s are equal
What would be a good strategy to use as you begin an essay exam? a. Immediately answer the first question as a way to get started and then go back and read the directions and other questions
b. Put a few notes in the margin as you read each of the questions. c. Answer the most difficult question first to reduce your anxiety. d. Answer the question that has the highest point value first, so that you can maximize your score on the test.