Maternal stress during a pregnancy seems to have its greatest impact if it occurs ______.

a. early in the prenatal period
b. close to the time of delivery
c. from time to time, rather than being a continuous state
d. at a low but constant level throughout the pregnancy


Ans: A

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Theoretical knowledge should take the place of practical knowledge

Indicate whether the statement is true or false.

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Select the correct diagram to determine whether the argument is valid or invalid

Premise: Some wingos are lingos.
Premise: Some lingos are bingos.
Conclusion: Some wingos are bingos.

a. The argument is valid.

b. The argument is invalid.

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In the effect size formula, what does s stand for?

a. standard error of mean b. effect size c. standard deviation d. variance

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Economist Peter Drucker states that schools will never improve until classrooms become places where people have crossed the frontier from

a. teaching to learning b. lecture to experience c. seeing to doing d. boring to engaging

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