In science learning groups, a student who makes sure her or his team understands the investigation is sometimes called the _____________.?
Fill in the blank(s) with the appropriate word(s).
director
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There is a negative relationship between the number of older siblings and the mental maturity scores of six-year-old children. This statement is an example of a
a. null hypothesis. c. nondirectional hypothesis. b. directional hypothesis. d. research problem.
An educational psychologist discovers that the more sleep students have, the greater their test scores are. This is an example of:
a. a positive correlation b. an experiment c. a negative correlation d. a case study
Evaluators emphasize the use of
a. qualitative method. b. whatever methods are most appropriate quantitative method. c. mixed methods. d. quantitative method.
The ordinal level of measurement
a. creates a ranking of categories b. describes categories c. assigns qualitative value to categories d. eliminates categories