C-sections ______________
a. are performed at equally small rates around the world because they are seen as a last resort
b. can be performed successfully only if the mother is full term
c. require the same recovery time as a vaginal birth if they are performed correctly
d. are often performed when the baby is in the breech position
Answer: D
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Professor Neuberg found that the mean number of alcoholic drinks consumed at a party was much higher for males than for females. If the median and mode number of drinks consumed by males and females was both zero, how can the difference in means be explained?
a. The mean number of drinks consumed by females was disproportionately increased by outliers drinking lots of drinks. b. The mean number of drinks consumed by males was disproportionately increased by outliers drinking lots of drinks. c. The difference in means gives no information that is useful and should not be explained. d. The difference most likely comes from an error in calculation.
Keep in mind that whenever you are comparing scores for a sample from before a treatment to after a treatment, you will want to use the ______.
A. post hoc design B. matched design C. pretest-posttest design D. related/paired samples t test
An experimental psychologist wants to study the effects of depth of processing controlling for the effects of other study strategies that the participants might use spontaneously if they know they are going to be tested on their memory. To do this, the experimenter tells the participants that they are going to be participating in a reaction time test to see how quickly they can make different
kinds of judgments about each of a series of words that will be presented to them, and they are not told that they will be tested for memory of the words. These instructions to the subjects are called a. a pilot test. b. an orienting task. c. intentional learning instructions. d. priming.
Approximately how many synapses exist in the average human brain?
A. 1,00,000 B. 1 million C. 10 billion D. 100 trillion