DIFFICULTY_PARAMETER_UNSCALED_B2

Business Definition

Unscaled version of the difficulty parameter b2 before score transformations. Used in conjunction with DIFFICULTY_PARAMETER_UNSCALED_B1 for raw metric analysis. Null for most items except those with polytomous IRT models.

Data Type

FLOAT

Nullable

Yes

Last Updated

2026-01-13T04:05:42 by LEARNOSITY_ITEMS_DIM_ANALYSIS