If the sample mean has the same value as the population mean, then for that sample mean
the _____ .
a. sampling error is zero
b. sampling error is 1.0
c. sampling error is greater than zero, but less than 1.0
d. sample mean must be incorrect
A
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Since the early days of IQ tests, psychologists have periodically rewritten the tests. Their revisions have intentionally made the tests more ____________________ than they used to be
Fill in the blank(s) with correct word
It is possible for a person to have respiration and a heart beat even when there is no cortical functioning of the brain
a. True b. False Indicate whether the statement is true or false
Recent research has revealed that marijuana use during pregnancy
a. is associated with low birth weight. b. has no noticeable effect. c. should be recommended to alleviate maternal discomfort. d. may impair the functioning of the areas of the brain responsible for emotional regulation.
Which of the following is TRUE of the relationship between maternal stress during pregnancy and outcomes for the baby?
a. Maternal stress increases the flow of blood to the fetus. b. Women who report greater anxiety during pregnancy more often give birth early or have babies who weigh less than average. c. Stress does not seem to affect a pregnant woman's immune system. d. The effects of occasional, mild anxiety are the same as those associated with prolonged, extreme stress.