Influencing Job Satisfaction

1. A researcher measures job satisfaction among married, single, and divorced employees to determine whether marital status can influence job satisfaction. Based on the following description in APA format, state the value for k, N, and n.

A one-way analysis of variance showed that job satisfaction did not vary by marital status,

F(3, 36) = 1.86, p > 0.05.

k

=

N

=

n

=

2. The following is an incomplete F-table summarizing the results of a study of the variance of life satisfaction scores among unemployed, retired, part-time, and full-time employees.

Source of Variation

SS

df

MS

F

Between groups

16

Within groups (error)

36

Total

124

(a) Complete the F-table. (Round your values for mean squares and F to two decimal places.)

Source of Variation

SS

df

MS

F

Between groups

16

Within groups (error)

36

Total

124

(b) Compute omega-squared

(ω2).

(Round your answer to two decimal places.) ω2 =

3. Iconic memory is a type of memory that holds visual information for about half a second (0.5 seconds). To demonstrate this type of memory, participants were shown three rows of four letters for 50 milliseconds. They were then asked to recall as many letters as possible, with a 0-, 0.5-, or 1.0-second delay before responding. Researchers hypothesized that longer delays would result in poorer recall. The number of letters correctly recalled is given in the table.

Delay Before Recall

0

0.5

1

12

8

4

7

4

2

8

4

4

10

9

7

5

6

2

12

5

5

(a) Complete the F-table. (Round your values for MS and F to two decimal places.)

Source of Variation

SS

df

MS

F

Between groups

Within groups (error)

Total

(b) Compute Tukey’s HSD post hoc test and interpret the results. (Assume alpha equal to 0.05. Round your answer to two decimal places.)

The critical value is for each pairwise comparison.

4. An educator wants to evaluate four different methods aimed at reducing the time children spend “off task” in the classroom. To test these methods, she implements one method in each of four similar classrooms and records the time spent off task (in minutes) in each classroom. The results are given in the table.

Classroom Method

A

B

C

D

1

4

3

2

5

3

0

5

4

5

4

2

2

0

6

4

2

1

0

1

3

1

6

3

0

4

3

3

1

4

4

4

1

0

5

2

(a) Complete the F-table. (Round your answers to two decimal places.)

Source of Variation

SS

df

MS

F

Between groups

Within groups (error)

Total

5. Drakou, Kambitsis, Charachousou, and Tzetzis (2006) tested differences in life satisfaction among sport coaches. They tested differences by gender, age, marital status, and education. The results of each F-test in the following table are similar to the way in which the data were given in their article.

Independent Variables

Life Satisfaction

M

SD

F

p

Gender

0.68

0.409

Men

3.99

0.51

Women

3.94

0.49

Age

3.04

0.029

20s

3.85

0.42

30s

4.03

0.52

40s

3.97

0.57

50s

4.02

0.50

Marital status

12.46

0.000

Single

3.85

0.48

Married

4.10

0.50

Divorced

4.00

0.35

Education

0.82

0.536

High school

3.92

0.48

Postsecondary

3.85

0.54

University degree

4.00

0.51

Masters

4.00

0.59

(a) Which factors were significant at a 0.05 level of significance? (Select all that apply.)

marital statuseducationgenderage

(b) State the number of levels for each factor.

gender

levels

age

levels

marital status

levels

education

levels

6. Using a rating scale, Tekinarslan (2008) measured computer anxiety among university students who use the computer very often, often, sometimes, and seldom. Below are the results of the one-way ANOVA.

Source of Variation

SS

df

MS

F

Between groups

1,959.79

3

653.26

21.16*

Within groups (error)

3,148.61

102

30.86

 

Total

5,108.41

105

(a) What are the values for N and k?

N

=

k

=

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