A Step by Step Guide for SPSS and Exercise Studies

Table 35
Statistical tests 109
Table 36
Unfortunately, SPSS does not provide post-hoc tests to examine further the
within-subject effects. That is, although you know that there is a significant
difference in the number of errors across the three anxiety conditions, you do not
know which condition differs significantly from the others. Does the high
anxiety condition produce significantly more errors than the other two
conditions, or does the difference lie between the high and the low anxiety
conditions only To answer such questions you need to calculate Tukey’s posthoc
test using the formula presented by Vincent (1999).
Alternatively, you can carry out three paired samples t tests (see Compare
means/Paired Samples T Test in the Analyze menu) comparing high and
moderate anxiety, high and low, and moderate and low anxiety. For these
multiple comparisons, the significance level should be adjusted by dividing the