Slightly less than half of all children have working mothers in the United States

Indicate whether the statement is true or false


FALSE

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Most child care centers have a governing body that is responsible for the day-to-day operations of the center

a. True b. False

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Posttest scores may be influenced by completing a pretest, an instance of a threat referred to as:

A) instrumentation B) order effects C) attrition D) regression

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There are sometimes legitimate reasons for "job hopping."

Answer the following statement true (T) or false (F)

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Refer to Exhibit 10-8. Assigns subjects randomly to groups after subjects are paired on qualities that could affect the dependent variable

a. random assignment b. randomized matching c. homogeneous selection d. analysis of covariance e. use of subjects as their own controls

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