. A major threat to validity to the posttest-only design with nonequivalent groups is:

a. History
b. Testing
c. Instrumentation
d. Differential selection


Ans: d

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Social changes such as increase in one-parent families, dual-career families, and homelessness have a negative impact on the _______________________and nutrition of children in this country

Fill in the blank(s) with correct word

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The formal introduction of Cooperative Learning models was inspired by:

a. the need for students to develop a deep understanding of words. b. growing awareness of the theory of group dynamics and a desire to promote racial integration. c. the belief that almost all cognitive activity involves categorizing. d. the primary goal to promote students' ability to think and reason.

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Of the following, the variable in the Model for Promoting Student Motivation that the type of questions Roxana asked (e.g., First, "What do you notice?") best illustrates is:

a. involvement. b. challenge. c. personalization. d. personal teaching efficacy.

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Children develop the most rapidly in all areas of their development during the preschool years

Indicate whether the statement is true or false

Education