4.) On the next page is a correlation matrix reproduced in SPSS, based on real d
ID: 3046088 • Letter: 4
Question
4.) On the next page is a correlation matrix reproduced in SPSS, based on real data from a study of low-income mothers. If you have familiarity with SPSS (e.g., if you have read the Chapter Supplement on the book’s website), answer the following questions with respect to this matrix:
a. How many respondents completed the SF-12 scale?
b. What is the correlation between body mass index (BMI) and scores on the physical health subscale of the SF12?
c. Is the correlation between the physical health and mental health subscale scores significant at conventional levels?
d. What is the probability that the correlation between BMI and number of doctor visits in the previous year is simply a function of chance?
e. With which variable(s) is BMI correlated at the 0.01 level of significance?
f. Explain what the correlation between the physical and mental health scale scores mean
Number of Doctor Visits, Past 12 mon
Body Mass Index
SF12: Physical Health Component Score
SF12: Mental Health Component Score
Number of doctor visits, Past 12 mo
Pearson
Correlation
Sig. (2-tailed)
N
1.000
997
.131**
.000
967
-.316**
.000
890
-.133**
.000
890
Body Mass Max
Pearson
Correlation
Sig. (2 tailed)
N
.131**
.000
967
1.000
970
-.134**
.000
866
-0.78*
.022
866
SF12: Physical Health Component Score
Pearson
Correlation
Sig. (2-tailed)
N
-.316**
.000
890
-.134**
.000
866
1.000
893
.168**
.000
893
SF12: Mental Health Component Score
Pearson
Correlation
Sig. (2-tailed)
N
-.133
.000
890
-.078*
.022
866
.168**
.000
893
1.000
893
Number of Doctor Visits, Past 12 mon
Body Mass Index
SF12: Physical Health Component Score
SF12: Mental Health Component Score
Number of doctor visits, Past 12 mo
Pearson
Correlation
Sig. (2-tailed)
N
1.000
997
.131**
.000
967
-.316**
.000
890
-.133**
.000
890
Body Mass Max
Pearson
Correlation
Sig. (2 tailed)
N
.131**
.000
967
1.000
970
-.134**
.000
866
-0.78*
.022
866
SF12: Physical Health Component Score
Pearson
Correlation
Sig. (2-tailed)
N
-.316**
.000
890
-.134**
.000
866
1.000
893
.168**
.000
893
SF12: Mental Health Component Score
Pearson
Correlation
Sig. (2-tailed)
N
-.133
.000
890
-.078*
.022
866
.168**
.000
893
1.000
893
Explanation / Answer
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.