The one-group pretest–posttest design is prone to which of the following threats to internal validity
A. regression toward the mean
B. maturations effects
C. maturation effects and testing effects
D. regression toward the mean, maturation effects, and testing effects
Ans: D
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An investigator began with a precise and logical hypothesis. He ran a well-planned and well-conducted experiment to test the deduced consequences of this hypothesis. No evidence was found to support the hypothesis. The investigator should report that
a. his study was a failure. b. the hypothesis was proved false. c. the hypothesis is probably true but experimental conditions did not permit the effect to be observed. d. None of these is true.
It is recommended practice to continue using a prompt even when the child with severe disabilities no longer needs it
Indicate whether the statement is true or false
_____________________ refers to the degree of cultural specificity present in the test or individual items of the test
a. cultural bias b. cultural loading c. culture-free tests d. homogeneity of regression
The inheritance of three copies of the twenty-first chromosome results in syndrome usually causes mild IDD and a variety of characteristic physical features
What will be an ideal response?