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Fix difficulty -> discrimination typo #859

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Merged
bob-carpenter merged 1 commit into from
Jan 29, 2025
Merged

Fix difficulty -> discrimination typo #859

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2 changes: 1 addition & 1 deletion src/stan-users-guide/problematic-posteriors.qmd
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Expand Up @@ -188,7 +188,7 @@ interpretable relative to student 1's ability to answer them.

This solution is not sufficient to deal with the multiplicative
invariance introduced by the question discrimination parameters
$\delta_i$. To solve this problem, one of the difficulty parameters,
$\delta_i$. To solve this problem, one of the discrimination parameters,
say $\delta_1$, must also be constrained. Because it's a
multiplicative and not an additive invariance, it must be constrained
to a non-zero value, with 1 being a convenient choice. Now all of the
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