Question

__________________________

1. A researcher is conducting a study on the effects of sleep on creativity. The creativity scores for three levels of sleep (4 hours of sleep, 8 hours of sleep, and 12 hours of sleep) for n = 5 participants (in each group) are presented below:

***Make sure you also ask SPSS for descriptive statistics of this data. When you are in the one-way ANOVA dialog box where you move variables to Factor and Dependent List, click on options and check descriptive statistics ***

Creativity Scores for Hours of Sleep

4 hours 8 hours 12 hours

3 7 10

5 5 9

2 3 15

6 4 11

4 8 10

___________________________________

a) What does the analysis tell us about the difference between the creativity and hours of sleep? Report the overall F value and discuss differences between group means.

b) Make a graph for the data and copy and paste it.

Instructions for the problem below

Make sure to ask SPSS to calculate main effects and interactions. This will include the marginal and cell means. Please note that on newer versions of SPSS, you can click EM means to calculate marginal means.

Here is an example of what the SPSS cell and marginal means looks like on the output. The marginal and cell means will be reported below the boxes that show the overall F values. Also ask SPSS for the descriptive statistics

2. A researcher would like to understand how body weight and alcohol affect aggressive behavior. The researcher wanted to compare light and heavy body weights to those given a placebo (juice) and those who were given alcohol.

​​​​​​Body Weight

light

heavy

Placebo group

(juice)

7

5

7

6

7

8

8

10

10

9

Alcohol Group

12

13

12

11

11

11

12

13

12

11

Type of

Drink

a) Based on your analysis, what can conclude about the findings? Include main effects and interactions.

b) Make an appropriate graph of the data

What does the analysis tell us about the difference between the creativity and hours of sleep? Report the overall F value and discuss differences between group means.

b) Make a graph for the data and copy and paste it.

Instructions for the problem below

Make sure to ask SPSS to calculate main effects and interactions. This will include the marginal and cell means. Please note that on newer versions of SPSS, you can click EM means to calculate marginal means.

Here is an example of what the SPSS cell and marginal means looks like on the output. The marginal and cell means will be reported below the boxes that show the overall F values. Also ask SPSS for the descriptive statistics

2. A researcher would like to understand how body weight and alcohol affect aggressive behavior. The researcher wanted to compare light and heavy body weights to those given a placebo (juice) and those who were given alcohol.

​​​​​​Body Weight

light

heavy

Placebo group

(juice)

7

5

7

6

7

8

8

10

10

9

Alcohol Group

12

13

12

11

11

11

12

13

12

11

Type of

Drink

a) Based on your analysis, what can conclude about the findings? Include main effects and interactions.

b) Make an appropriate graph of the data

Answer 1