Which of the following illustrates the process of random assignment in an experimental study?
A) Participants are assigned to a group depending on whether or not they smoke.
B) Participants roll a die, and the number is used to assign them to one of six groups.
C) Participants are assigned to the "male" or "female" group depending on their gender.
D) Participants are asked which of two groups they prefer.
B) Participants roll a die, and the number is used to assign them to one of six groups. Random assignment requires that neither the participant nor the researcher influences the process of how participants are placed in groups.
You might also like to view...
When asked why she decided to attend the University of Illinois over all the other Big Ten schools, Dornita said that the school's proximity to home was a major reason. The importance Dornita places on proximity is called ____.?
a. ?weighted value b. ?expectancy c. ?objective value d. ?utility
Sexual harassment results in:
a. decreased productivity b. increased absenteeism c. increased turnover d. all of these are results
An art instructor wants to teach students how to portray emotions when drawing faces. The instructor would be wise to concentrate on
a. pleasantness-unpleasantness, attention-rejection, and activation. b. subjective feelings and physiological reactions. c. indicators of emotion measured by the polygraph. d. the size of the pupils and parasympathetic reactions.
Regarding how emotions are expressed in other cultures, which of the following statements is TRUE?
a. Some facial expressions are shaped by learning and may be found only in specific cultures, while others like the smile appear to be universal. b. Expressing anger in public is universally expected and accepted in all cultures. c. The facial expression of sticking out one's tongue is interpreted as an insult in every country. d. The three basic dimensions of facial expressions are tension, relaxation, and liking.