- #36
Gokul43201
Staff Emeritus
Science Advisor
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Where did I say I was doing that (generalizing beyond the extremes)? In fact, I specifically said you would have to "rewrite your hypothesis to test only the difference in tendencies of the two extremes of the churchgoers (the very regulars and the nearly nevers)". Nothing there about ascribing those differences in attitudes to anyone else. And given the new hypothesis, you do not gain back a degree of freedom by throwing out the middle group: if you do not belong in one extreme, you automatically belong in the other, since we are only studying the extremes.Vanadium 50 said:I don't get the same numbers you do. Tossing the middle section out increases the degrees of freedom by removing a constraint. Did you do that? In any event, let's stipulate that what you say is true qualitatively at least: the effect becomes more significant by removing more moderate responses from the data. That may improve the statistics, but it makes the sociology more suspect: now you are ascribing attitudes to an entire group that are statistically significant only for the most extreme members of the group.
But you don't even have to go this far. You can reject independence at the 92% level (my number) for all three groups with two choices and at the 80% level for all three groups with four choices (your number).