ITEM_KEY

Business Definition

Surrogate foreign key to LEARNOSITY_ITEMS_DIM enabling efficient joins to item metadata including IRT parameters, question content, and psychometric properties. A value of -1 or null indicates the item could not be matched to the dimension, typically for legacy or unregistered items.

Data Type

NUMBER(38,0)

Nullable

Yes

Last Updated

2026-01-20T04:47:38 by ASSESSMENT_ITEM_FACT_ANALYSIS