The main purpose of using random assignment in a research study is to ______.
a. increase the ability to make cause–effect inferences between variables
b. increase the external validity of a study
c. increase the ability to generalize the results of a study to a larger population
d. make the sample resemble the population as closely as possible
a. increase the ability to make cause–effect inferences between variables
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A researcher needs a measure of intelligence to use in research on children with reading difficulties. The test must be highly reliable and be given in a manner such that the children who are not used to taking standardized tests will not be at a disadvantage. Money is no object. The type of test that you would recommend for this researcher's purpose is one that is
a. individual, nonverbal, and objectively scored. b. group, nonverbal, and subjectively scored. c. group, nonverbal, and objectively scored. d. group, verbal, and objectively scored. e. individual, verbal, and subjectively scored.
Discuss environmental factors as they may affect a young child's language development
What will be an ideal response?
What are the ingredients of a positive self-concept?
What will be an ideal response?
A child's buggy algorithm can be useful under conditions where it
a. leads occasionally to a correct answer b. is a part of a change schema c. helps a teacher identify the child's conceptual difficulties d. can be deduced from a problem typology