____ in every ____ children live in families whose income is below the federal poverty level
a. 1, 3
b. 1, 5
c. 1, 7
d. 1, 9
b
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Toddlers who receive more positive responses from their peers are ones who have
A. older sisters in their families. B. older brothers in their families. C. secure attachments to their parents. D. a better understanding of perspective taking.
If we say that a particular data collection method has high reliability, we mean that it:
a. Yields scores that fall on a bell curve b. Yields similar results on different occasions c. Predicts future success in academic or social settings d. Accurately determines whether children have met certain predetermined developmental goals
Two researchers select a sample from a population with a mean of 12.4 and a standard deviation of 9. Researcher A selects a sample of 30 participants. Researcher B selects a sample of 40 participants. Which sample is associated with a smaller standard error?
A. Researcher A’s, because the sample size was smaller. B. Researcher B’s, because the sample size was smaller. C. Researcher A’s, because the sample size was larger. D. Researcher B’s, because the sample size was larger.
Impairment
What will be an ideal response?