Statistical MethodsPartial and Multiple Correlations (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1  5 of 5
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Question number: 1
» Statistical Methods » Partial and Multiple Correlations
Question
If is the Coefficient of Correlation then which of the following indicates the strongest relationship?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Passage
Rama is trying to predict the weight of a newborn given some information about its mother and prenatal care. A1 is the birth weight, it is the criterion. A2 is the mothers weight before getting pregnant, A3 is how many cigarettes a day the mother smoked during pregnancy, A4 is how much weight the mother gained during pregnancy and A5 is how far into the pregnancy the mother was when she began receiving prenatal care. Here is a correlation matrix of the correlations between pairs of variables Use this matrix to answer the following questions.
A1  A2  A3  A4  A5  
A1  1.000  
A2  0.543  1.000  
A3  0.341  0.932  1.000  
A4  0.682  0.192  0.435  1.000  
A5  0.821  0.472  0.001  0.311  1.000 
Question number: 2 (1 of 3 Based on Passage) Show Passage
» Statistical Methods » Partial and Multiple Correlations
Question
In this matrix, what is the correlation between smoking and weight gain?
Choices
Choice (4)  Response  

a.  0.932  
b.  0.341  
c.  0.435  
d.  0.001 
Question number: 3 (2 of 3 Based on Passage) Show Passage
» Statistical Methods » Partial and Multiple Correlations
Question
Which of the variables is likely to be the single best predictor of birth weight of a newborn?
Choices
Choice (4)  Response  

a.  A2  
b.  A4  
c.  A3  
d.  A5 
Question number: 4 (3 of 3 Based on Passage) Show Passage
» Statistical Methods » Partial and Multiple Correlations
Question
What is the coefficient of determination for the relationship between smoking and mothers’ weight?
Choices
Choice (4)  Response  

a. 
 
b.  0.868  
c. 
 
d.  Question does not provide sufficient data or is vague 
Question number: 5
» Statistical Methods » Partial and Multiple Correlations
Question
What is the correlation between the following zscores?
X  Y 
0.1  0.2 
0.6  0.4 
0.3  1.0 
0.5  0.3 
0.8  0.7 
Choices
Choice (4)  Response  

a. 
 
b.  0.425  
c. 
 
d.  Question does not provide sufficient data or is vague 