Correlation are useful for ____________?

Related Mcqs:

1. If one finds a positive correlation between degree of coffee drinking and the likelihood of heart attacks. One can conclude that ___________?

   A. Coffee drinking causes heart attack
   B. Individuals prone to heart attacks are predisposed to drink a lot of coffee
   C. An active life style of certain people causes heart attack
   D. None of these

2. Correlation studies _____________?

   A. indicate causality
   B. are more valid than laboratory studies
   C. indicate some relationship between two variables
   D. involve manipulation of independent variables

3. High correlation with premature birth has been found in cases where the mother’s behavior included _____________?

   A. depression
   B. exposure to radiation
   C. smoking
   D. alcoholic beverages

4. You believe that short men have a tendency to be insecure. The concept of illusory correlation implies that you will:

   A. overestimate how often short men are insecure
   B. underestimate are frequency of short men in population
   C. overestimate the frequency of short men in the population
   D. falsely assume the shortness in men cause insecurity

5. Which of the following coefficients of correlation indicates the strongest relationship between two sets of variables?

   A. -0.98
   B. 0.90
   C. 0.00
   D. 1.20

6. A correlation coefficient of 0 means that there is:

   A. a strong negative relationship between the two variables
   B. a strong positive relationship between the two variables
   C. a perfect positive relationship between the two variables
   D. no relationship between the two variables

7. Which of the following coefficients of correlation indicates the weakest relationship between two sets of variables?

   A. 0.08
   B. -0.29
   C. 0.48
   D. -1.00

8. A correlation coefficient of -1.09 indicates a(n)

   A. strong positive correlation
   B. strong negative correlation
   C. cause/effect relationship
   D. error in computation

9. A correlation coefficient is best characterized as a(n):

   A. measure of the extent of the relationship between two variables
   B. index of the causal direction between an independent and dependent variable
   C. indication of the likelihood that an experimental finding will be replicated by others
   D. measure of the likelihood that observed differences may be attributed to chance

10. The clinical method is particularly useful to the study of such school problems as the following:

    A. The serve reading-disability case
    B. The serve stutter or stammerer
    C. The chronic delinquent
    D. All of the above