item_report: Generate item-level diagnostics

In surveyframe: Survey Instrument Workflows

Generate item-level diagnostics

Description

Produces item-total correlations, floor and ceiling effect proportions, and item means and standard deviations for each item within each scale.

Usage

item_report(data, instrument, scales = NULL)

Arguments

data	A tibble or data.frame of responses.
instrument	An sframe object.
scales	Character vector or NULL. A subset of scale IDs to analyse. When NULL (default), all scales are included.

Value

An object of class sframe_item_report, a list with one data.frame per scale.

See Also

reliability_report(), sf_scale()

Examples

demo <- sframe_demo_data()
ir <- item_report(demo$responses, demo$instrument)
print(ir)

surveyframe documentation built on July 25, 2026, 1:07 a.m.