What is the mean extroversion score for blonds

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Reference no: EM131214992

1. Conduct a one-way ANOVA to investigate the relationship between hair color and social extroversion. Use Tukey's test as the post hoc test for ANOVA's in 355. Be sure to check this box when you run analyses. Paste SPSS output including the post hoc tests.

Descriptives

 

Social Extroversion

Std. Error

Minimum

Maximum

N

Mean

Std. Deviation

95% Confidence Interval of the Difference

Lower

Upper

Blonde

Brunette

Redhead

Total

 

6

6

6

18

5.17

3.67

2.33

3.72

2.787

1.211

1.033

2.109

2.24

2.40

1.25

2.67

8.09

4.94

3.42

4.77

1.138

.494

.422

.497

2

2

1

1

 

10

5

4

10

ANOVA

Social Extroversions

Sum of Squares

df

Mean Square

F

Sig.

Between Groups

Within Groups

Total

24.111

51.500

75.611

2

15

17

12.056

3.433

3.511

.056

 

 

 

 

 

 


Social Extroversion

Hair Color

Turkey's Test

Hair

Color

Mean Difference

Std. Error

Sig.

95% Confidence Interval of the Difference

Lower

Upper

Blonde

 

Blonde

 

Redheads

Brunet

Redhead

Blonde

Redhead

Blonde

Brunette

1.500

2.833

-1.500

1.333

-2.833

-1.333

1.070

1.070

1.070

1.070

1.070

1.070

.365

.045

.365

.446

.045

.446

-1.28

.05

-4.28

-1.45

-5.61

-4.11

4.28

5.61

1.28

4.11

-.05

1.45

2. Answer the following questions:

a. What is the mean extroversion score for blonds?

b. What is the F value for the group effect of hair color?

c. What is the p value associated with the above F value?

3. What is the effect size for the relationship between hair color and extroversion? The effect size is found in the SPSS output. Review section on effect size statistics in this lesson, and the SPSS tutorial, if needed.

4. Create a boxplot that displays the differences among the distributions for the three hair color groups. Remember to put your dependent variable in the "variable" box, and your independent, or grouping, variables in the "category axis" box.

Part Two:

1. Research Scenario:An investigator in child development research is studying whether parenting styles have an effect on second grade students' behavior at school. She interviews 23 volunteer families from the same class and separates them into three groups of parenting styles: authoritarian (n = 8); authoritative (n = 8); and permissive (n = 7). Their teacher fills out a behavior inventory for each of the 23 children, and the investigator collects and scores them. The scores are contained in the table below. The scores can range from 0-20, and a higher score indicates more behavior problems. Conduct a one-way ANOVA to determine the effect of parenting styles on behavior inventory scores.

The steps will be the same as the ones you have been practicing in Part One of the assignment-the only difference is that you are now responsible for creating the data file as well. Remember to name and define your variables under the "Variable View," then return to the "Data View" to enter the data.

Authoritarian

8, 13, 4, 15, 5, 4, 9, 12

Authoritative

8, 5, 6, 4, 2, 5, 10, 13

Permissive

10, 8, 16, 9, 8, 3, 15

1. What is the F ratio for theparenting styleeffect?

2. What is the effect size for the overall effect of parenting style on behavior inventory scores? According to general conventions, is this effect small, medium, or large? (See Effect Size Statistics section in Lesson 25 of Green and Salkind for conventions.)

3. Write an APA-style Results section based on your analysis. All homework "Results sections" should follow the example given in the SPSS tutorials and the Course Content document "Writing Results of Statistical Tests in APA Format." Remember to include a decision about the null hypothesis.

Part 3: Cumulative Homework: Choose the correct method from tests learned in previous modules.

1. Research scenario:In a study of the relationship between violent pornography and aggression toward women, 16 male volunteers are selected and randomly assigned to one of two groups. One group views a violent, sexually explicit film, and the other group sees a nature film. A test to measure aggressive feelings toward women is then administered to all participants. (High scores = high aggressive feelings).

Is there a significant difference between the groups on feelings of aggression towards women? Choose the correct test to analyze this question, set up the SPSS file, and run the analysis. Follow the directions under the table below.

Nature Film

4

5

7

9

6

4

2

3

5

Explicit Film

6

8

5

11

10

7

7

a) Paste appropriate SPSS output here.

b) Paste appropriate SPSS graph here.

c) Write an APA-style results section describing the outcome. All homework "Results sections" should follow the example given in the Course Content document "Writing Results of Statistical Tests in APA Format" (note: you do not have to refer to a figure).

Reference no: EM131214992

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