Using a nonequivalent control group can result in ______ between groups because participants were not randomly assigned
A. similar variability
B. observer bias
C. selection differences
D. an independent variable
Ans: C
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When an appropriate curriculum is in place ____
a. ?academic goals are not addressed b. ?children are on task although they may not be actively involved c. ?children are actively engaged in learning through play and meaningful experiences d. ?all children are guaranteed to learn the same thing at the same time
The Children’s Defense Fund (2000) reports that half of all children between ages six and eight have untreated dental problems
Indicate whether this statement is true or false.
Approximately how many school-age children are undocumented?
a. 1 million b. 2 million c. 3 million d. 4 million
When variances across groups are unequal, which of the following is not an appropriate course of action?
A. Welch’s F-ratio B. Games–Howell post hoc tests C. Transforming the data D. Friedman’s ANOVA