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DDBA 8307 Week 6 Assignment Template – Multiple
Regression
est of Assimptions essionable 2 Variablesnn
John Doe
DDBA 8307-6
Dr. Jane Doe
1
Multiple Linear Regression
Type text here. Describe and defend using the multiple linear
regression test for your analysis. Use at least two outside
resources—that is, resources not provided in the course
resources, readings, etc. These citations will be presented in the
References section. This exercise will give you practice for
addressing Rubric Item 2.13b, which states, “Describes and
defends, in detail, the statistical analyses that the student will
conduct….” This section should be no more than two
paragraphs.
Research Question
Type research question here.
Hypotheses
H0: Type null hypothesis here.
H1: Type alternative hypothesis here.
Results
In this subheading, I will present descriptive statistics, discuss
testing of the assumptions, present inferential statistic results,
and conclude with a concise summary.
Descriptive Statistics
Present appropriate descriptive statistics here.Tests of
Assumptions
Type text here.Inferential Results
Present appropriate inferential results here.
2
References
Type references here in proper APA format.
Appendix – Multiple Linear Regression SPSS Output
10
DDBA 8307 Week 6 Assignment Exemplar – Multiple
Regression
est of Assimptions essionable 2 Variablesnn
John Doe
DDBA 8307-6
Dr. Jane Doe
1
Multiple Linear Regression
Type text here. Describe and defend using the multiple linear
regression test for your analysis. Use at least two outside
resources—that is, resources not provided in the course
resources, readings, etc. These citations will be presented in the
References section. This exercise will give you practice for
addressing Rubric Item 2.13b, which states, “Describes and
defends, in detail, the statistical analyses that the student will
conduct….” This section should be no more than two
paragraphs.
Research Question
Is there a statistically significant relationship between stress,
engagement, intent to leave, and job satisfaction?
Hypotheses
H0: There is not a statistically significant relationship between
stress, engagement, intent to leave, and job satisfaction.
H1: There is a statistically significant relationship between
stress, engagement, intent to leave, and job satisfaction.
Results
In this subheading, I will present descriptive statistics, discuss
testing of the assumptions, present inferential statistic results,
and conclude with a concise summary.
Descriptive Statistics
A total of 426 employees participated in the study. The
assumptions of outliers, multicollinearity, normality, linearity,
homoscedasticity, and independence of residuals were evaluated
with no significant violations noted. Table 1 depicts descriptive
statistics for the study variables. Figure 1 depicts a scatter plot
of the bivariate correlation, indicative of a negative linear
relationship between job satisfaction and intent to leave.
Table 1
Means and Standard Deviations for Quantitative Study
Variables
Variable
M
SD
Bootstrapped 95% CI (M)[footnoteRef:1] [1: The 95%
Bootstrap confidence intervals are produced when the
bootstrapping procedure is selected in the SPSS regression
process. See the Multiple Linear Regression videos in the Week
6 Learning Resources. ]
Stress
26.36
10.56
[24.80, 27.94]
Engagement
43.60
12.51
[41.90, 45.28]
Intent to leave
72.34
15.21
[70.23, 74.51]
Job satisfaction
169.12
10.00
[167.68, 170.44]
Note: N = 204.
Descriptive Statistics for Study Variables
Variable
M
SD
Stress
Engagement
Intent to leave
Job satisfaction
Tests of Assumptions
The assumptions of multicollinearity, outliers, normality,
linearity, homoscedasticity, and independence of residuals were
evaluated. Bootstrapping, using 1,000 samples, enabled
combating the influence of assumption violations.
Multicollinearity. Multicollinearity was evaluated by viewing
the correlation coefficients among the predictor variables. All
bivariate correlations were small to medium (Table 2);
therefore, the violation of the assumption of multicollinearity
was not evident. The following table contains the correlation
coefficients.
Table 2
Correlation Coefficients Among Study Predictor Variables
Variable
Stress
Engagement
Intent to Leave
stress
1.00
.151
-.010
Engagement
.151
1.00
.562
Intent to leave
-.010
.562
1.00
Note. N = 204.
Outliers, normality, linearity, homoscedasticity, and
independence of residuals. Outliers, normality, linearity,
homoscedasticity, and independence of residuals were evaluated
by examining the Normal Probability Plot (P-P) of the
Regression Standardized Residual (Figure 1) and the scatterplot
of the standardized residuals (Figure 2)[footnoteRef:2]. The
examinations indicated there were no major violations of these
assumptions. The tendency of the points to lie in a reasonably
straight line (Figure 1), diagonal from the bottom left to the top
right, provides supportive evidence the assumption of normality
has not been grossly violated (Pallant, 2010)[footnoteRef:3].
The lack of a clear or systematic pattern in the scatterplot of the
standardized residuals (Figure 2) supports the tenability of the
assumptions being met. However, 1,000 bootstrapping samples
were computed to combat any possible influence of assumption
violations and 95% confidence intervals based upon the
bootstrap samples are reported where appropriate. [2: You will
run these plots when running the regression procedure.] [3: It
is important to note the results of your assumption test will
differ from this hypothetical example. Therefore, you must
report the results appropriately for your analysis. Do not copy
this example verbatim; ensure you understand “your” analysis
output.]
Figure 1. Normal probability plot (P-P) of the regression
standardized residuals.
Figure 2. Scatterplot of the standardized residuals.
Inferential Results
Standard multiple linear regression[footnoteRef:4], α = .05
(two-tailed), was used to examine the efficacy of stress,
engagement, and intent to leave in predicting job satisfaction.
The independent variables were stress, engagement, and intent
to leave[footnoteRef:5]. The dependent variable was job
satisfaction[footnoteRef:6]. The null hypothesis was that there
is not a statistically significant relationship between stress,
engagement, and intent to leave. The alternative hypothesis was
that there is a statistically significant relationship between
stress, engagement, and intent to leave. Preliminary analyses
were conducted to assess whether the
assumptions[footnoteRef:7] of multicollinearity, outliers,
normality, linearity, homoscedasticity, and independence of
residuals were met; no serious violations were noted (see Tests
of Assumptions). The model as a whole[footnoteRef:8] was able
to significantly predict job satisfaction: F(3, 200) = 4.778, p <
.003, R2 = .067. The R2 (.067) value indicated that
approximately 7% of variations in job satisfaction is accounted
for by the linear combination of the predictor variables (stress,
engagement, and intent to leave). In the final model, stress and
intent to leave were statistically significant with stress (t = –
3.892, p < .01, β = –.393) accounting for a higher contribution
to the model than intent to leave (t = –2.595, p < .05, β = –
.268). Engagement did not explain any significant variation in
job satisfaction. The final predictive equation was: [4: Identify
the test and of purpose of the test.] [5: Restate the independent
variables as presented in the purpose statement and research
question; there is to be no deviation.] [6: Restate the
dependent variables as presented in the purpose statement and
research question; there is to be no deviation.] [7: Identify the
assumptions and state how they were assessed.] [8: State
whether the model (app predictors included) could predict (or
not) the dependent variable. Report the appropriate statistics
(e.g., F(3, 200) = 4.778, p < .003, R2 = .067).]
Job satisfaction = 70.205 – .148(stress) + .109(engagement) –
2.303(intent to leave).
Stress. The negative slope for age (–.148) as a predictor of job
satisfaction indicated there was about a .148 decrease in job
satisfaction for each 1-point increase in stress. In other words,
job satisfaction tends to decrease as stress increases. The
squared semi-partial coefficient (sr2) that estimated how much
variance in job satisfaction was uniquely predictable from stress
was .03, indicating that 3% of the variance in job satisfaction is
uniquely accounted for by stress, when organizational
commitment and engagement are controlled.
Intent to leave. The negative slope for intent to leave (–2.303)
as a predictor of job satisfaction indicated there was a 2.303
decrease in job satisfaction for each additional 1-unit increase
in intent to leave, controlling for stress and engagement. In
other words, job satisfaction tends to decrease as intent to leave
increases. The squared semi-partial coefficient
(sr2)[footnoteRef:9] that estimated how much variance in job
satisfaction was uniquely predictable from intent to leave was
.04, indicating that 4% of the variance in job satisfaction is
uniquely accounted for by intent to leave, when stress and
engagement are controlled. The following table depicts the
regression summary. [9: Derived from the SPSS output.]
Table 3
Regression Analysis Summary for Predictor Variables
Variable
Β[footnoteRef:10] [10: Β values are to be used in the
regression equation. These are the unstandardized coefficients
in the SPSS output.]
SE Β
β[footnoteRef:11] [11: The beta weights identify which
variables contribute more to the model. These are the
standardized coefficients in the SPSS output.]
t[footnoteRef:12] [12: The test statistic for the hypothesis test
for the slope (Β) is derived from the SPSS output and is used to
evaluate the significance of the Β weights, where p ≤ .05 is
significant.]
p[footnoteRef:13] [13: The sig. (p) value for the hypothesis
test for the slope (Β); derived from the SPSS output; used to
evaluate the significance of the Β weights, where p ≤ .05 is
significant.]
B 95%[footnoteRef:14] Bootstrap CI [14: The 95% Bootstrap
confidence intervals are produced when the bootstrapping
procedure is selected in the SPSS regression process. See the
Multiple Linear Regression videos in the Week 6 Learning
Resources. ]
Stress
-.148
0.054
-.393
-3.892
<. 01
[-.262, -.025]
Engagement
.109
3.770
-.038
0.371
.712
[-.008, .245]
Intent to leave
-2.303
.888
-.268
-2.595
.011
[-.442, -.081]
Note. N= 204.
9
References
Type references here in proper APA format.
Appendix – Multiple Linear Regression SPSS Output
Insert the appropriate SPSS output here.
5DDBA 8307 Week 6 Assignment Template – Multiple Regression.docx

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5DDBA 8307 Week 6 Assignment Template – Multiple Regression.docx

  • 1. 5 DDBA 8307 Week 6 Assignment Template – Multiple Regression est of Assimptions essionable 2 Variablesnn John Doe DDBA 8307-6 Dr. Jane Doe 1 Multiple Linear Regression Type text here. Describe and defend using the multiple linear regression test for your analysis. Use at least two outside resources—that is, resources not provided in the course resources, readings, etc. These citations will be presented in the References section. This exercise will give you practice for addressing Rubric Item 2.13b, which states, “Describes and defends, in detail, the statistical analyses that the student will conduct….” This section should be no more than two paragraphs. Research Question
  • 2. Type research question here. Hypotheses H0: Type null hypothesis here. H1: Type alternative hypothesis here. Results In this subheading, I will present descriptive statistics, discuss testing of the assumptions, present inferential statistic results, and conclude with a concise summary. Descriptive Statistics Present appropriate descriptive statistics here.Tests of Assumptions Type text here.Inferential Results Present appropriate inferential results here. 2 References Type references here in proper APA format. Appendix – Multiple Linear Regression SPSS Output
  • 3. 10 DDBA 8307 Week 6 Assignment Exemplar – Multiple Regression est of Assimptions essionable 2 Variablesnn John Doe DDBA 8307-6 Dr. Jane Doe 1 Multiple Linear Regression
  • 4. Type text here. Describe and defend using the multiple linear regression test for your analysis. Use at least two outside resources—that is, resources not provided in the course resources, readings, etc. These citations will be presented in the References section. This exercise will give you practice for addressing Rubric Item 2.13b, which states, “Describes and defends, in detail, the statistical analyses that the student will conduct….” This section should be no more than two paragraphs. Research Question Is there a statistically significant relationship between stress, engagement, intent to leave, and job satisfaction? Hypotheses H0: There is not a statistically significant relationship between stress, engagement, intent to leave, and job satisfaction. H1: There is a statistically significant relationship between stress, engagement, intent to leave, and job satisfaction. Results In this subheading, I will present descriptive statistics, discuss testing of the assumptions, present inferential statistic results, and conclude with a concise summary. Descriptive Statistics A total of 426 employees participated in the study. The assumptions of outliers, multicollinearity, normality, linearity, homoscedasticity, and independence of residuals were evaluated with no significant violations noted. Table 1 depicts descriptive statistics for the study variables. Figure 1 depicts a scatter plot of the bivariate correlation, indicative of a negative linear relationship between job satisfaction and intent to leave. Table 1 Means and Standard Deviations for Quantitative Study Variables
  • 5. Variable M SD Bootstrapped 95% CI (M)[footnoteRef:1] [1: The 95% Bootstrap confidence intervals are produced when the bootstrapping procedure is selected in the SPSS regression process. See the Multiple Linear Regression videos in the Week 6 Learning Resources. ] Stress 26.36 10.56 [24.80, 27.94] Engagement 43.60 12.51 [41.90, 45.28] Intent to leave 72.34 15.21 [70.23, 74.51] Job satisfaction 169.12 10.00 [167.68, 170.44] Note: N = 204. Descriptive Statistics for Study Variables Variable M SD Stress Engagement
  • 6. Intent to leave Job satisfaction Tests of Assumptions The assumptions of multicollinearity, outliers, normality, linearity, homoscedasticity, and independence of residuals were evaluated. Bootstrapping, using 1,000 samples, enabled combating the influence of assumption violations. Multicollinearity. Multicollinearity was evaluated by viewing the correlation coefficients among the predictor variables. All bivariate correlations were small to medium (Table 2); therefore, the violation of the assumption of multicollinearity was not evident. The following table contains the correlation coefficients. Table 2 Correlation Coefficients Among Study Predictor Variables Variable Stress Engagement Intent to Leave stress 1.00 .151 -.010 Engagement .151 1.00 .562 Intent to leave -.010
  • 7. .562 1.00 Note. N = 204. Outliers, normality, linearity, homoscedasticity, and independence of residuals. Outliers, normality, linearity, homoscedasticity, and independence of residuals were evaluated by examining the Normal Probability Plot (P-P) of the Regression Standardized Residual (Figure 1) and the scatterplot of the standardized residuals (Figure 2)[footnoteRef:2]. The examinations indicated there were no major violations of these assumptions. The tendency of the points to lie in a reasonably straight line (Figure 1), diagonal from the bottom left to the top right, provides supportive evidence the assumption of normality has not been grossly violated (Pallant, 2010)[footnoteRef:3]. The lack of a clear or systematic pattern in the scatterplot of the standardized residuals (Figure 2) supports the tenability of the assumptions being met. However, 1,000 bootstrapping samples were computed to combat any possible influence of assumption violations and 95% confidence intervals based upon the bootstrap samples are reported where appropriate. [2: You will run these plots when running the regression procedure.] [3: It is important to note the results of your assumption test will differ from this hypothetical example. Therefore, you must report the results appropriately for your analysis. Do not copy this example verbatim; ensure you understand “your” analysis output.] Figure 1. Normal probability plot (P-P) of the regression standardized residuals.
  • 8. Figure 2. Scatterplot of the standardized residuals. Inferential Results Standard multiple linear regression[footnoteRef:4], α = .05 (two-tailed), was used to examine the efficacy of stress, engagement, and intent to leave in predicting job satisfaction. The independent variables were stress, engagement, and intent to leave[footnoteRef:5]. The dependent variable was job satisfaction[footnoteRef:6]. The null hypothesis was that there is not a statistically significant relationship between stress, engagement, and intent to leave. The alternative hypothesis was that there is a statistically significant relationship between stress, engagement, and intent to leave. Preliminary analyses were conducted to assess whether the assumptions[footnoteRef:7] of multicollinearity, outliers, normality, linearity, homoscedasticity, and independence of residuals were met; no serious violations were noted (see Tests of Assumptions). The model as a whole[footnoteRef:8] was able to significantly predict job satisfaction: F(3, 200) = 4.778, p < .003, R2 = .067. The R2 (.067) value indicated that approximately 7% of variations in job satisfaction is accounted for by the linear combination of the predictor variables (stress, engagement, and intent to leave). In the final model, stress and intent to leave were statistically significant with stress (t = – 3.892, p < .01, β = –.393) accounting for a higher contribution to the model than intent to leave (t = –2.595, p < .05, β = – .268). Engagement did not explain any significant variation in job satisfaction. The final predictive equation was: [4: Identify the test and of purpose of the test.] [5: Restate the independent variables as presented in the purpose statement and research question; there is to be no deviation.] [6: Restate the dependent variables as presented in the purpose statement and research question; there is to be no deviation.] [7: Identify the assumptions and state how they were assessed.] [8: State whether the model (app predictors included) could predict (or not) the dependent variable. Report the appropriate statistics
  • 9. (e.g., F(3, 200) = 4.778, p < .003, R2 = .067).] Job satisfaction = 70.205 – .148(stress) + .109(engagement) – 2.303(intent to leave). Stress. The negative slope for age (–.148) as a predictor of job satisfaction indicated there was about a .148 decrease in job satisfaction for each 1-point increase in stress. In other words, job satisfaction tends to decrease as stress increases. The squared semi-partial coefficient (sr2) that estimated how much variance in job satisfaction was uniquely predictable from stress was .03, indicating that 3% of the variance in job satisfaction is uniquely accounted for by stress, when organizational commitment and engagement are controlled. Intent to leave. The negative slope for intent to leave (–2.303) as a predictor of job satisfaction indicated there was a 2.303 decrease in job satisfaction for each additional 1-unit increase in intent to leave, controlling for stress and engagement. In other words, job satisfaction tends to decrease as intent to leave increases. The squared semi-partial coefficient (sr2)[footnoteRef:9] that estimated how much variance in job satisfaction was uniquely predictable from intent to leave was .04, indicating that 4% of the variance in job satisfaction is uniquely accounted for by intent to leave, when stress and engagement are controlled. The following table depicts the regression summary. [9: Derived from the SPSS output.] Table 3 Regression Analysis Summary for Predictor Variables Variable Β[footnoteRef:10] [10: Β values are to be used in the regression equation. These are the unstandardized coefficients in the SPSS output.]
  • 10. SE Β β[footnoteRef:11] [11: The beta weights identify which variables contribute more to the model. These are the standardized coefficients in the SPSS output.] t[footnoteRef:12] [12: The test statistic for the hypothesis test for the slope (Β) is derived from the SPSS output and is used to evaluate the significance of the Β weights, where p ≤ .05 is significant.] p[footnoteRef:13] [13: The sig. (p) value for the hypothesis test for the slope (Β); derived from the SPSS output; used to evaluate the significance of the Β weights, where p ≤ .05 is significant.] B 95%[footnoteRef:14] Bootstrap CI [14: The 95% Bootstrap confidence intervals are produced when the bootstrapping procedure is selected in the SPSS regression process. See the Multiple Linear Regression videos in the Week 6 Learning Resources. ] Stress -.148 0.054 -.393 -3.892 <. 01 [-.262, -.025] Engagement .109 3.770 -.038 0.371 .712 [-.008, .245] Intent to leave
  • 11. -2.303 .888 -.268 -2.595 .011 [-.442, -.081] Note. N= 204. 9 References Type references here in proper APA format. Appendix – Multiple Linear Regression SPSS Output Insert the appropriate SPSS output here.