If Pearson r correlation coefficient shows a very strong correlation, this indicates that the correlation is statistically significant

Select one:

True

False

Question 12

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The probability of event A occurring conditional that independent events B and C have occurred is denoted:

Select one:

a.

P(A|P(B+C))

b.

P(A|P(B) + P(C))

c.

P(A|P(B)*P(C))

d.

[P(B)*P(C)] | P(A)

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Non-parametric procedures:

Select one:

a.

are appropriate for data that are normally distributed

b.

have less power than their parametric counterparts

c.

have fewer assumptions regarding the underlying distribution than their parametric counterparts

d.

b and c

e.

all the above

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The correlation between a continuous and a dichotomous variables cannot be assessed

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True

False

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In a linear regression, the error introduced by the predictions based on the regression line is called:

Select one:

a.

slope

b.

intercept

c.

residual

d.

correlation ratio

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You want to compare the proportion of male and female patients discharged by hospital ward. There are 10 wards. For the best nominated test, the number of degrees of freedom is:

Select one:

a.

1

b.

8

c.

9

d.

10

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The probability of event A occurring conditional that event B has occurred is 22.5%. The probability of event B occurring conditional that event A has occurred is 10.0%. Prior probability of event A is 9.0%. Given this information, calculate prior probability of event B.

Select one:

a.

5.5%

b.

7.0%

c.

4.0%

d.

0.04%

e.

25.0%

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Which of the below listed Pearson r values indicate the weakest relationship?

Select one:

a.

+0.85

b.

+0.006

c.

0.0

d.

-0.93

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In the following frequency distribution 4, 4.1, 4, 5, 5.3, 5.6, 7, 13, the number 4.1 is the:

Select one:

a.

mode

b.

median

c.

range

d.

mean

e.

none of the above

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Generalizability of a study is also known as:

Select one:

a.

External validity

b.

Internal validity

c.

Reliability

d.

Internal consistency

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