State the following research question as a null hypothesis: Is grade category (A–F) related to year in college (first, sophomore, junior, senior)?
What will be an ideal response?
Ans: Year in college is not related to grade category.
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Benson and colleagues (1976) did an experiment in which an application packet was left at an airport phone booth with either an attractive or unattractive picture of the applicant. The packet had been ostensibly lost and had a stamped, addressed envelope with it. They found that a. people were more likely to send in the packets of the attractive than the unattractive applicants. b. people
were more likely to send in the packets of the unattractive than the attractive applicants. c. people were more likely to help the attractive applicant only if they were known to the applicant and had thechance of developing a relationship with them. d. people were more likely to help the unattractive applicant only if they were known to the applicant and had thechance of developing a relationship with them.
To the extent that a behavior occurs only when a particular event occurs, we tend to attribute the behavior to that event. This is an example of ________
a. consistency b. distinctiveness c. consensus d. frequency
What are extraneous variables?
What will be an ideal response?
Alertness, decreased fatigue, improved ability to concentrate, and elevated mood are most common to low doses of
a. amphetamine b. barbiturates c. narcotics d. marijuana