For a given study, how do each of the following variables affect power?

a. Changing α from .05 to .01

INCREASE / DECREASE / NO CHANGE

b. Increasing the sample size

INCREASE / DECREASE / NO CHANGE

c. Increasing the effect size

INCREASE / DECREASE / NO CHANGE

d. Choosing a research hypothesis with a value closer to the null hypothesis

INCREASE / DECREASE / NO CHANGE

e. Changing from a one-tailed test to a two-tailed test

INCREASE / DECREASE / NO CHANGE

If aggregate demand increases and aggregate supply decreases, the price level

1. will decrease, but real output may increase, decrease, or remain unchanged.

2. will increase, but real output may increase, decrease, or remain unchanged.

3. and real output will both increase.

4. and real output will both decrease.

 If other factors are held constant, what is the effect of increasing the sample size?

a. It will increase the estimated standard error and increase the likelihood of rejecting  

b. It will decrease the estimated standard error and decrease the likelihood of rejecting . 

c. It will decrease the estimated standard error and increase the likelihood of rejecting . 

d. It will increase the estimated standard error and decrease the likelihood of rejecting .

A multiple regression model has the form . As increases by 7 units (holding constant), is expected to  (enter increase, decrease) by units.