Multiple Choice
Which of the following is true about Type II errors?
A) the probability of one occurring is equal to the alpha level
B) they cannot occur if the statistical test is powerful enough
C) they occur when a true effect exists, but we fail to discover it in our study
D) they occur when we reject the null hypothesis, when we really should not do so
Correct Answer:

Verified
Correct Answer:
Verified
Q66: In a normal distribution, what (approximate)percentage of
Q67: A Type I error occurs when the
Q68: Five children are tested for IQ and
Q69: Normally, which of the following outcomes is
Q70: Suppose there are 100 studies that failed
Q71: A gradual decline in responding in the
Q72: In a sequence of trials, an infant
Q73: Which of the following is an example
Q74: Knowing the standard deviation of a set
Q75: Most research in psychology uses _ sampling.<br>A)convenience<br>B)simple