The number of participants within the sample was 1546. The average age of the respondent is 39.01 years with a standard
deviation of 13.472. The mean income of the sample is $8,000-$14,000 with a standard deviation of 3.40. (Descriptive Statistics
can be found in Appendix A)
Within the regression model numerous variables were thrown out due to lack of significance. Among those variables were
BlackRace, OtherRace, Age, Male, Employed, Unemployed, MOFA, FASMO, MOSFA, FaOnly, MoOnly, and Relative. All of the above
variables are not significant enough to explain the variance within the model. The only three variables that remained in the
model because they were significant were the respondent’s religiosity, level of education and income level. Under the
Model Summary table, the respondent’s religiosity (ReligiosityIndex) is actually the variable that is the strongest
predictor of the variance at 12.8%. The variances predictability actually increases to 16.5% when the respondent’s level
of education is added with ReligiosityIndex. When the last significant variable, respondent’s income, is added into
the model the predictability of variance increases to 16.6%. Looking at the adjusted R squared in the Model Summary table,
which is adjusted to account for more complex models like what we have, the difference in percentage of predictable variance
is still very close to the regular R squared. If you look at the Model Summary table under the R square change column you
can see what percentage of predictability each variable adds to the total as it’s put into the model. For example when
adding level of education (which accounts for 3.7% of predictability) to the 12.8% of predictability of the variable ReligiosityIndex,
you get the total predictability of 16.6%. Continuing down the column will give you the amount of predictability that each
variable adds to the model. As you can see adding in the last variable, respondent’s income, only accounts for .2% of
the predictability of the index. While the income level is significant it doesn’t add much to the predictability.
Model Summary
Model |
R |
R Square |
Adjusted R Square |
Std. Error of the Estimate |
Change Statistics |
R Square Change |
F Change |
df1 |
df2 |
Sig. F Change |
1 |
.358(a) |
.128 |
.128 |
.99118 |
.128 |
227.213 |
1 |
1544 |
.000 |
2 |
.407(b) |
.166 |
.165 |
.97001 |
.037 |
69.137 |
1 |
1543 |
.000 |
3 |
.410(c) |
.168 |
.166 |
.96894 |
.002 |
4.406 |
1 |
1542 |
.036 |
a Predictors: (Constant), ReligiosityIndex
b Predictors: (Constant), ReligiosityIndex, HIGHEST YEAR OF SCHOOL COMPLETED
c Predictors: (Constant), ReligiosityIndex, HIGHEST YEAR OF SCHOOL COMPLETED, RESPONDENTS INCOME
Continuing onto the Coefficients table using a stepwise regression it’s found that ReligiosityIndex
is still the most important variable accounting for the most variance while the variable Rincome accounts for very little.
Something from this table that is particularly noteworthy is the negative relationship that both ReligiosityIndex and Educ
have with our dependent variable. This being the case as respondent’s religiosity increases their likelihood of approving
of suicide actually decreases. And as the respondent’s education level increases their likelihood of approving of suicide
actually increases as well.
Coefficients(a)
Model |
|
Unstandardized Coefficients |
Standardized Coefficients |
t |
Sig. |
B |
Std. Error |
Beta |
1 |
(Constant) |
8.083 |
.066 |
|
121.703 |
.000 |
ReligiosityIndex |
-.083 |
.005 |
-.358 |
-15.074 |
.000 |
2 |
(Constant) |
9.080 |
.136 |
|
66.581 |
.000 |
ReligiosityIndex |
-.082 |
.005 |
-.356 |
-15.297 |
.000 |
HIGHEST YEAR OF SCHOOL COMPLETED |
-.076 |
.009 |
-.193 |
-8.315 |
.000 |
3 |
(Constant) |
9.017 |
.139 |
|
64.693 |
.000 |
ReligiosityIndex |
-.083 |
.005 |
-.359 |
-15.421 |
.000 |
HIGHEST YEAR OF SCHOOL COMPLETED |
-.081 |
.009 |
-.206 |
-8.584 |
.000 |
|
RESPONDENTS INCOME |
.016 |
.008 |
.051 |
2.099 |
.036 |
a Dependent Variable: SuicideIndex