correlation techniques

Question 1

correlation is a measure of-

Answer 1

strength and direction of a linear relationship between 2 variables

Question 2

pearson

Answer 2

interval or ratio

Question 3

spearman

Answer 3

ordinal

Question 4

linear regression is used to-

Answer 4

predict or estimate one variable hen the value of the other variable is known

Question 5

coefficient of determination

Answer 5

R2 = measure of how well the regression model fits

Question 6

survival analysis is a technique for -

Answer 6

measuring binomial outcomes which involve time to event

Question 7

kaplan-meyer analysis

Answer 7

survival at time t = number of patients surviving longer than t/total patients

Question 8

Cox analysis allows for the calculation of-

Answer 8

hazards ratios

Question 9

harzards ratio

Answer 9

probability of an event occurring in the treatment group when compared to the control group

Question 10

predicting one variable on the basis of another

Answer 10

simple linear regression

Question 11

predicting one variable on the basis of multiple others

Answer 11

multiple linear regression

Question 12

predicting survival

Answer 12

cox regression