We would use a chi-square test if we wanted to learn whether there is evidence to reject the ______ that claims there is no relationship between two categorical variables.
A. alternative hypothesis
B. standard deviation
C. null hypothesis
D. expected frequency
Answer: C
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Compare and contrast Broadbent's and Treisman's models of attention. How are they similar? How do they differ? Which model is considered "leaky" and why?
What will be an ideal response?
When you are in a restaurant, you probably will not belch because of social ____.?
a. ?facilitation b. ?interference c. ?attribution d. ?norms
Simons and Chabris showed participants a film of two basketball teams, one wearing black shirts and the other wearing white. Observers were asked to watch the film closely and count how many times a basketball passed between members of one of the teams, while ignoring the other team. As the observers watched and counted, a person wearing a gorilla suit walked into the middle of the basketball
game, faced the camera, thumped its chest, and walked out of view. Which of the following occurred? a. All of the participants lost count of the number of basketball passes because of the unexpected appearance of the gorilla. b. Half of the participants failed to notice the gorilla's appearance. c. All of the participants failed to notice the gorilla's appearance. d. Only the female participants noticed the gorilla.
In true experiments:
a. we have to know what we are looking for. b. the experimenter is active. c. we can infer important relationships between events. d. all of these