. Nonequivalent control group designs are prone to selection differences. What are selection differences, and is this mostly a threat to internal or external validity?

What will be an ideal response?


Ans: Selection differences are any differences, which are not controlled by the researcher, between individuals who are selected from preexisting groups or groups to which the researcher does not randomly assign participants. This is mostly a threat to internal validity.

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List two universal themes that can be found in historical fiction for children.

What will be an ideal response?

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In which phase of the 5E instructional model is equilibration initiated?

A. elaboration B. engagement C. explanation D. exploration

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Which of the following is a benefit of music for child development?

a. Children can be distracted by the background music during a language arts block. b. Children can learn to draw cartoon characters while listening to music. c. Children increase their perceptual skills when exposed to various types of music. d. Children attend more music sessions than language arts sessions each week.

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Which of the following is NOT one of the main types of ability groups mentioned in the text?

a. within-class grouping b. between-class grouping c. tractoring d. regrouping

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