question archive Josie Davis PSYC 100 May 17, 2022 HT/CE #2 1
Josie Davis PSYC 100 May 17, 2022 HT/CE #2 1
Subject:PsychologyPrice:0 Bought3
Josie Davis
PSYC 100
May 17, 2022
HT/CE #2
1. A total of 100 undergraduates were recruited to participate in a study on the effects of study location on learning. The study employed a 2 x 2 between-subjects design, with all participants studying a chapter on the science of gravity and then being tested on the to-be-learned material one week later. Fifty of the participants were asked to study the chapter at the library, whereas the other fifty were asked to study the chapter at home. As a separate manipulation, participants were either told to study the chapter for 30 min or 120 min. The hypothetical set of data shown below represents the level of performance of participants on the test as a function of condition.
30 min 120 min
Library 60 80
Home 40 60
a) Is there a main effect of Study Location? In answering, provide the marginal means and state the direction of the effect (if there is one).
b) Is there a main effect of Study Duration? In answering, provide the marginal means and state the direction of the effect (if there is one).
c) Do the results indicate an interaction? If so, describe the nature of the interaction by comparing the simple effects.
d) Illustrate the results with a bar graph (make sure the variables and axes are labeled appropriately)
e) Interpret the results. What do they tell you about how study location affects learning? (be sure to refer to the interaction or lack thereof)
2. Now pretend that the following data were obtained:
30 min 120 min
Library 50 90
Home 50 70
a) Is there a main effect of Study Location? In answering, provide the marginal means and state the direction of the effect (if there is one).
b) Is there a main effect of Study Duration? In answering, provide the marginal means and state the direction of the effect (if there is one).
c) Do the results indicate an interaction? If so, describe the nature of the interaction by comparing the simple effects.
d) Illustrate the results with a bar graph (make sure the variables and axes are labeled appropriately)
e) Interpret the results. What do they tell you about how study location affects learning? (be sure to refer to the interaction or lack thereof)
3. Now pretend that the following data were obtained:
30 min 120 min
Library 50 90
Home 60 80
a) Is there a main effect of Study Location? In answering, provide the marginal means and state the direction of the effect (if there is one).
b) Is there a main effect of Study Duration? In answering, provide the marginal means and state the direction of the effect (if there is one).
c) Do the results indicate an interaction? If so, describe the nature of the interaction by comparing the simple effects.
d) Illustrate the results with a bar graph (make sure the variables and axes are labeled appropriately)
e) Interpret the results. What do they tell you about how study location affects learning? (be sure to refer to the interaction or lack thereof)
4. Now pretend that the following data were obtained:
30 min 120 min
Library 95 95
Home 95 95
a) Is there a main effect of Study Location? In answering, provide the marginal means and state the direction of the effect (if there is one).
b) Is there a main effect of Study Duration? In answering, provide the marginal means and state the direction of the effect (if there is one).
c) Do the results indicate an interaction? If so, describe the nature of the interaction by comparing the simple effects.
d) Illustrate the results with a bar graph (make sure the variables and axes are labeled appropriately)
e) Interpret the results. What do they tell you about how study location affects learning? (be sure to refer to the interaction or lack thereof)
In HT/CE #1, you were asked to test several hypotheses/proverbs using the experimental method. For the current Hypothesis Testing exercise, you are asked to test the same hypotheses/proverbs using a factorial design. The goal is to show that each hypothesis is true under one condition but not (or reversed) under another. In other words, you must predict an interaction.
Each response should include the following information:
Independent Variable #1:
Level 1:
Level 2:
How would the variable be operationalized? Would it be manipulated within or between subjects?
Independent Variable #2:
Level 1:
Level 2:
How would the variable be operationalized? Would it be manipulated within or between subjects?
Dependent Variable:
How would the variable be operationalized? How would you ensure high construct validity?
How would you recruit your sample? To what population would you hope to generalize?
Create a table to display the results of your factorial design (be sure to label your conditions appropriately)
Describe your predicted interaction and explain why you are predicting it.
Discuss issues of internal and external validity, and how you would find a good balance.
Hypotheses
5. Sleep deprivation makes people take more risks while driving
6. Bad experiences are more likely to be remembered than good experiences
7. Students learn more effectively when they take notes by hand than when they take notes using a laptop
Proverbs
8. Bad news travels fast
9. Variety is the spice of life
10. Too many cooks spoil the broth
