What is the main reason researchers should be unobtrusive when performing naturalistic
observation?
A) It is the only way to change participants' behavior to fit your predictions.
B) Participants may not want to be observed.
C) The reactions of the participants may change when they know they are being observed.
D) Data may not be valid for other types of participants.
C
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Studies of the association between political party identification and helping behavior suggest that
a. conservatives are more helpful than liberals b. conservatives are more likely than liberals to help when a person is not responsible for his or her plight c. liberals are more likely to help but give less than conservatives when they do help d. liberals are more likely than conservatives to help when a person is responsible for his or her plight
The measure of the effect size for the difference between two groups is best seen as
a. the difference in their means. b. . c. the ratio of the means. d. all of the above