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volker (version 3.1.0)

effect_counts_items: Test homogeneity of category shares for multiple items

Description

Performs a goodness-of-fit test and calculates the Gini coefficient for each item. The goodness-of-fit-test is calculated using stats::chisq.test.

Usage

effect_counts_items(data, cols, labels = TRUE, clean = TRUE, ...)

Value

A volker tibble with the following statistical measures:

  • Gini coefficient: Gini coefficient, measuring inequality.

  • n: Number of cases the calculation is based on.

  • Chi-squared: Chi-Squared test statistic.

  • p: p-value for the statistical test.

  • stars: Significance stars based on p-value (*, **, ***).

Arguments

data

A tibble containing item measures.

cols

Tidyselect item variables (e.g. starts_with...).

labels

If TRUE (default) extracts labels from the attributes, see codebook.

clean

Prepare data by data_clean.

...

Placeholder to allow calling the method with unused parameters from effect_counts.

Examples

Run this code
library(volker)
data <- volker::chatgpt

effect_counts_items(data, starts_with("cg_adoption_adv"))

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