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two sample tests should allow user to specify which group is "first" and which group is "second" #3135

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gweinberg opened this issue Mar 8, 2023 · 0 comments

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@gweinberg
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gweinberg commented Mar 8, 2023

Problem

Currently, in Toolbox -> Tests -> two sample mean or two sample proportion, it's not clear which group it chooses as "first" and which group it chooses as "second". As a result, if you select, say, "less than", it's not clear whether, for instance, it's going to test mu_A < mu_B, or mu_B < mu_A.

[Of course experienced users will merely see the result and then re-do it if it wasn't the intended way, but beginning learners are more likely to be confused and not notice.]

So, request for the test-of-two-group panel to be redesigned so that it's clear which group it will choose as "first" and which as "second", or even, give the user a way to specify.

How about maybe, just under the "group" pulldown there's a space, and once you select the "group" variable, then some new text and a new pulldown appear, like:
image

(I know it's already possible for panels to make new text and a new pulldown containing the category names after a previous pulldown has been selected, because we already do it for one proportion test: After the group variable is selected, then the panel shows a new pulldown asking which category is "success".)

Solution

see above

Alternatives

No response

Additional context

None.

@gweinberg gweinberg changed the title two sample tests should indicate which group is less/greater than which other two sample tests should indicate which group is "first" and which group is "second" Mar 8, 2023
@gweinberg gweinberg changed the title two sample tests should indicate which group is "first" and which group is "second" two sample tests should allow user to specify which group is "first" and which group is "second" Mar 8, 2023
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