Author Question: What does the two-way chi-square test measure? a. Whether one variable seems related to another ... (Read 78 times)

Kthamas · **on:** Jul 8, 2018

What does the two-way chi-square test measure?

a. Whether one variable seems related to another one
b. Whether two variables cause one another
c. Whether an intervention changes the dependent variable's value
d. Change over time

Question 2

Which of the following dependent variables is suitable for logistic regression analysis? (Select all that apply.)

a. How many compressions were delivered in the first minute post-code
b. Serum sodium value
c. Born on earthnot born on earth
d. Height at adulthood
e. Birth gender
f. Whether a patient with cancer goes into remission

patma1981 · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: A
The chi-square () test compares differences in proportions of nominal level variables. A two-way chi-square is a statistic that tests whether proportions in levels of one variable are significantly different from proportions of the second variable. In other words, it detects whether one nominal variable seems to be related to another one.

Answer to Question 2

ANS: C, E, F
Logistic regression replaces linear regression when the researcher wants to test a predictor or predictors of a dichotomous dependent variable. Logistic regression can have continuous predictors or nominal predictors or a combination of the two, with no assumptions regarding normality of the distribution.