ABSTRACT
Note that the method of reporting in Example 2 is similar to that for reporting the
results of at test.4 This result tells us that there is a significant difference with p < .01. Thus, the null hypothesis may be rejected at the .01level. The null hypothesis
for this test says that the set of three differences was created at random. By rejecting
the null hypothesis, we are rejecting the notion that one or more of the differences
were created at random. Notice that the test does not tell us which of the three dif-
ferences is responsible for the rejection of the null hypothesis. It could be that only
one or two of the three differences was responsible for the significance. Procedures
for determining which individual differences are significant are described in Sec-
tions 49 and 50.
