A researcher wants to investigate the effectiveness of three versions of a computer-assisted instructional (CAI) program in math on the achievement of elementary school students in math. The researcher wants to know if the effectiveness of the program would depend on the math aptitude (classified as above and below average) and the gender of the students. What experimental design would you

recommend for this study?

a. 1 ´ 2 ´ 3 factorial design
b. 3 ´ 2 ´ 2 factorial design
c. Solomon three-group design
d. Randomized subjects, pretest-posttest, control group design
e. None of these is true.


B

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Might there be occasions in which Mr. Beezley should insist that his students work independently?

What will be an ideal response?

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Name the four parts of the comprehensive vocabulary program described in the chapter.

What will be an ideal response?

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Sophia has a small head, is hyperactive and easily distracted, and has poor impulse control. Her condition was most likely caused by ______.

a. lack of close attachment in infancy b. a severe ear infection c. her mother’s alcohol consumption d. a lack of oxygen to the brain

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Jack is a person with autism. He has severe intellectual disabilities but he can play many classical piano compositions by ear. Jack probably has a condition known as _____

A) perseveration B) Rett syndrome C) overselectivity D) savant syndrome

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