31.5 -values: Comparing odds
The differences between the observated sample statistic (the sample OR) and the hypothesised population parameter (the population OR of one) is summarised by (approximately equivalent to ). Using the 68–95–99.7 rule, a small -value is expected.
The corresponding two-tailed -value reported by
jamovi
(Fig. 31.1, under the p
column)
and SPSS
(Fig. 31.2,
in the Asymptotic Significance (2-sided)
column
and Pearson Chi-Square
row)
is very small
( to three decimals).
Recall that, for two-way tables of counts,
the alternative hypotheses are always two-tailed,
so a two-tailed -value is always reported.
Click on the hotspots in the following image, to see what the SPSS output tells us.