Which of the following statements correctly describe an interaction effect? Select all that apply. a. Scenic locations have an effect on mood but only in the presence of other people. O b. Group averages were significantly different when analysing heart rate data, but were not significantly different when analysing pupil size data in the same study. O c. The effect of class size on self-reported lecture engagement depends on the time of day when lectures take place. O d. People who walked around in a park for 1 hour reported feeling more relaxed than those who walked around a busy street for 1 hour.

MATLAB: An Introduction with Applications
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Which of the following statements correctly describe an interaction effect? Select all that apply.
O a. Scenic locations have an effect on mood but only in the presence of other people.
O b. Group averages were significantly different when analysing heart rate data, but were not significantly different when analysing pupil size data in the same study.
O c. The effect of class size on self-reported lecture engagement depends on the time of day when lectures take place.
O d. People who walked around in a park for 1 hour reported feeling more relaxed than those who walked around a busy street for 1 hour.
Transcribed Image Text:Which of the following statements correctly describe an interaction effect? Select all that apply. O a. Scenic locations have an effect on mood but only in the presence of other people. O b. Group averages were significantly different when analysing heart rate data, but were not significantly different when analysing pupil size data in the same study. O c. The effect of class size on self-reported lecture engagement depends on the time of day when lectures take place. O d. People who walked around in a park for 1 hour reported feeling more relaxed than those who walked around a busy street for 1 hour.
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Interaction effect:

Interaction effects determine the combined effects of factors on the dependent measure. Due to an interaction effect, one level of a factor is impacted by another level of a factor. When interaction effects are significant in the model, the interpretation of only main effects will be incomplete.

 

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