Why is it possible for condition means to differ at the end of an experiment even if the independent variable had no effect?
a. a Type II error has occurred
b. error variance
c. randomization
d. a null finding has been obtained
e. power was low
Question 2
If statistical analyses show that the difference between condition means is larger than would be expected on the basis of error variance alone, a researcher will
a. accept the null hypothesis
b. reject the null hypothesis
c. fail to reject the null hypothesis
d. reject the experimental hypothesis
e. both a and d
Common sites of amputation. (A) Upper extremities. (B) Lower extremities. The surgeon determines th
Ghostly experiment
The skulls of living haplorhines differ from those of strepsirhines by having large brains, an enclo
The Means and Extremes of a Proportion
Redi Experiment
The Experiment at Robbers Cave