A researcher collects data from 18 people and calculates a Pearson correlation of r = -.42. Assuming ? = .05 (two-tailed), the researcher would make the decision to ______.

a. reject the null hypothesis (p < .05)
b. reject the null hypothesis (p < .01)
c. not reject the null hypothesis (p > .05)
d. not reject the null hypothesis (p < .05)


c. not reject the null hypothesis (p > .05)

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In 1935 this distinguished psychiatrist established classrooms for disturbed children at Bellevue Hospital in New York:

A. Bender. B. Bettelheim. C. Fenichel. D. Redl. E. Wickman.

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During a meeting with the family of a student with special needs

A. always begin by citing that child's accomplishments. B. always insist that the child be present at the meeting if the child is old enough to contribute. C. use the technical language as often as necessary, provided you clarify the meanings of the terms being used. D. avoid asking questions of the family in case they don't speak English well.

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A researcher separates employees at a local business by their seniority level in the company, and then randomly assigns each group (low seniority, moderate seniority, and high seniority) to each of two groups to study employee attitudes. What type of restricted random assignment was used in this example?

A. control by participation B. control by representation C. control by matching D. control by holding constant

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What classroom room features should be examined to increase children's ability to hear and understand instruction?

What will be an ideal response?

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