Ragava International Statistical Institute - Global Healthcare Training

1.) If the values of two variables move in the same direction, ___________

The correlation is said to be non-linear

The correlation is said to be linear

The correlation is said to be negative

The correlation is said to be positive

2.) If the values of two variables move in the opposite direction, ___________

The correlation is said to be non-linear

The correlation is said to be linear

The correlation is said to be negative

The correlation is said to be positive

3.) Which of the following techniques is an analysis of the relationship between two variables to help provide the prediction mechanism?

Standard error

Correlation

Regression

None of the above

4.) In regression analysis, the variable that is being predicted is the

response, or dependent, variable

independent variable

intervening variable

is usually x

5.) When there is no linear correlation between two variables, what will the value of r be?

-1

1

0

a very small negative number

6.) An r value of 0.80 indicates:

no linear correlation at all

perfect linear correlation

correlation, but not linear

some linear correlation

7.) The relationship between patient satisfaction and hours per patient day on a GOB unit was found to be (r=0.70,p < 0.05). What is the correlation between these two values?

0.05

0.7

14

0.49

8.) Coefficient of correlation explains:

Concentration

Relation

Dispersion

Asymmetry

9.) The unit of Coefficient of correlation is ........................

Percentage

Ratio

Same unit of the data

No unit

10.) Relationship between Fall risk assessment compliance and falls incidence

positive

negative

no correlation

both positive and negative

Quiz