Related Questions
Q35:
What is the difference between a main effect and an overall effect? A)Main effects are less important than overall effects. B)Main effects are more complicated to determine than overall effects. C)Main effects look at one variable at a time; overall effects look at all variables simultaneously. D)There is no difference between main effects and overall effects.
Q36:
If a person describes the results of a study to you by saying that there is a zero difference in one condition but a large difference in another condition, the person is most likely describing which of the following? A)A crossover interaction B)A spreading interaction C)A three-way interaction D)A difference interaction
Q37:
Dr. Gavin is conducting a 2 × 4 independent-groups factorial design. How many main effects will Dr. Gavin need to examine? A)2 B)3 C)4 D)6
Q38:
Dr. Gavin is conducting a 2 × 4 independent-groups factorial design. How many independent variables are in his study? A)2 B)4 C)6 D)8
Q39:
Dr. Gavin is conducting a 2 × 4 independent-groups factorial design. How many interactions will Dr. Gavin need to examine? A)1 B)2 C)3 D)4
Q41:
A simple difference is also called: A)a factorial design. B)a marginal means difference. C)an interaction effect. D)a main effect.
Q42:
Studies with one independent variable can show: A)a difference in differences. B)an interaction effect. C)a simple difference. D)a factorial effect.
Q43:
To study the effects of physical discomfort on attention, Dr. Lopez conducted the following study: A group of participants were required to keep one hand submerged in cold water (52 degrees). Half of the participants kept their hand in the water for 2 minutes, and half of the participants kept their hand in the water for 4 minutes. In addition, half of the participants were given a placebo pill and told it would reduce the pain of the water (pain relief assumed). The other half were given a placebo pill and told that it would have no effect (no pain relief assumed). While their hands were in the water, participants were asked to watch a video where a ball is quickly passed between and underneath three cups. At the end of the video, participants were asked to indicate under which cup the ball could be found. Whether or not the participant picked the correct cup was recorded (as a measure of whether they were paying attention). The results are below.
Provide a graph of the possible interaction in Dr. Lopez's study and discuss whether Dr. Lopez should conclude that an interaction exists in his study.Q44:
To study the effects of physical discomfort on attention, Dr. Lopez conducted the following study: A group of participants were required to keep one hand submerged in cold water (52 degrees). Half of the participants kept their hand in the water for 2 minutes, and half of the participants kept their hand in the water for 4 minutes. In addition, half of the participants were given a placebo pill and told it would reduce the pain of the water (pain relief assumed). The other half were given a placebo pill and told that it would have no effect (no pain relief assumed). While their hands were in the water, participants were asked to watch a video where a ball is quickly passed between and underneath three cups. At the end of the video, participants were asked to indicate under which cup the ball could be found. Whether or not the participant picked the correct cup was recorded (as a measure of whether they were paying attention). The results are below.
Imagine that Dr. Lopez decides to add an additional variable to his study. He is curious as to whether the results of the study vary based on sex (male and female). The graphs of the results are below. Discuss whether Dr. Lopez should conclude that a three-way interaction exists in his study.Q45:
To study the effects of physical discomfort on attention, Dr. Lopez conducted the following study: A group of participants were required to keep one hand submerged in cold water (52 degrees). Half of the participants kept their hand in the water for 2 minutes, and half of the participants kept their hand in the water for 4 minutes. In addition, half of the participants were given a placebo pill and told it would reduce the pain of the water (pain relief assumed). The other half were given a placebo pill and told that it would have no effect (no pain relief assumed). While their hands were in the water, participants were asked to watch a video where a ball is quickly passed between and underneath three cups. At the end of the video, participants were asked to indicate under which cup the ball could be found. Whether or not the participant picked the correct cup was recorded (as a measure of whether they were paying attention). The results are below.
Using Dr. Lopez's study as an example, explain why an interaction can be described as "a difference in differences."