What are the independent variable (IV) and the dependent variable (DV)? (.5) psychological well being-dependent variable, training program-independent program.

The manager of a large organization noticed that some employees were experiencing high levels of job stress. To reduce this stress, she planned to offer a stress management program. To evaluate the available programs, she randomly assigned 60 employees to one of five Training conditions: Meditation Training, Assertiveness Training, Individual Counseling, Physical Fitness Training, and a Control condition. After training, she measured Psychological Well-Being. If there are significant differences among the groups, she will implement the program for which the workers report the highest Psychological Well-Being scores. Using the data set assigned to you by your teaching assistant, help the manager select the most effective program by responding to the following questions.

What are the independent variable (IV) and the dependent variable (DV)? (.5) psychological well being-dependent variable,
training program-independent program

State the null hypothesis in both words and symbols. (.5)
Null hypothesis; Psychological well being is affected by training program
Alternative hypothesis Psychological well being is not affected by training programs
H0; Psychological well being is affected by training program
H1; Psychological well being is not affected by training programs

Test the null hypothesis by building an ANOVA Source Table by hand. (1)
Table
Anova is used to analyze variances

N Mean Std deviation Std error Upper bound Lower bound
assertiveness 12 4.45 3.83 1.23 3.2 7.4
Counseling 12 4.1 3.1 2.1 3.8 6.2
Fitness 12 3.90 2.5 0.95 3.14 5.3
Control 12 5.2 3.5 1.45 4.3 8.02
Meditation 12 4.54 2.9 0.59 4.03 7.66
Total 60 4.49 3.17 1.26

ANOVA
Psychological well being Sum of squares df Mean square F significance
Affected 1256.44 15 1236.33 30.26 .000
Not affected 743.40 44 38.06
59

What conclusion can we draw regarding the null hypothesis? (1)
The null hypothesis is accepted
This means that the psychological well being is affected by the execution of the training programs.