Question

1. Which of these correlations is the weakest?

a. .72

b. -.26

c. -.95

d. .19

e. .04

2. A measure is reliable if it __________

a. result in similar scores when the same person completes the measure twice

b. result in different scores when the same person completes the measure twice

c. measures what it is supposed to measure

d. does not measure what it is supposed to measure

e. produces results consistent with your hypothesis

3. Which of the following t-tests describes a statistically significant effect?

a. t(38)=.034, p=.987

b. t(41)=-2.41, p=.41

c. t(112)=1.14, p=.057

d. t(14)=1.34, p=.134

4. A social psychologist is studying how people explain behavior (i.e., attributions). In her experiment, she shows participants a 30 second movie clip of a person walking into a telephone poll while texting. However, the sex of the actor in the video is manipulated and half of the participants see a female while the other half views a male. After this, participants rate the person on a number of personality traits. What is the IV in this experiment?

a. Participant sex

b. The length of the video clip

c.The sex of the actor in the video

d. The personality of the actor in the video

e. This is a correlational study so there is not true IV

Answer 1

• 1.ANSWER-0.04 is the weakest correlation
• 2.ANSWER-A measure is reliable if it result in similar scores when the same person completes the measure twice
• 4.ANSWER-The IV is the sex of the actor in the video since it is manipulated the experimenter,as one group is shown male actor and the other female actor.