Package: idmact 1.0.1.9000
idmact: Interpreting Differences Between Mean ACT Scores
Interpreting the differences between mean scale scores across various forms of an assessment can be challenging. This difficulty arises from different mappings between raw scores and scale scores, complex mathematical relationships, adjustments based on judgmental procedures, and diverse equating functions applied to different assessment forms. An alternative method involves running simulations to explore the effect of incrementing raw scores on mean scale scores. The 'idmact' package provides an implementation of this approach based on the algorithm detailed in Schiel (1998) <https://www.act.org/content/dam/act/unsecured/documents/ACT_RR98-01.pdf> which was developed to help interpret differences between mean scale scores on the American College Testing (ACT) assessment. The function idmact_subj() within the package offers a framework for running simulations on subject-level scores. In contrast, the idmact_comp() function provides a framework for conducting simulations on composite scores.
Authors:
idmact_1.0.1.9000.tar.gz
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idmact.pdf |idmact.html✨
idmact/json (API)
NEWS
# Install 'idmact' in R: |
install.packages('idmact', repos = c('https://mncube.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/mncube/idmact/issues
assessmentmeasurementpsychometricsscale
Last updated 2 years agofrom:d80b08cf9f. Checks:OK: 7. Indexed: yes.
Target | Result | Date |
---|---|---|
Doc / Vignettes | OK | Nov 09 2024 |
R-4.5-win | OK | Nov 09 2024 |
R-4.5-linux | OK | Nov 09 2024 |
R-4.4-win | OK | Nov 09 2024 |
R-4.4-mac | OK | Nov 09 2024 |
R-4.3-win | OK | Nov 09 2024 |
R-4.3-mac | OK | Nov 09 2024 |
Exports:adjust_raw_scoresidmact_compidmact_subjmap_elongatemap_elongate_dfmap_scores
Dependencies:rlang
Readme and manuals
Help Manual
Help page | Topics |
---|---|
Adjust Raw Scores | adjust_raw_scores |
Interpreting Differences in Mean ACT Scores at the Composite Level | idmact_comp |
Interpret Differences in Mean ACT Scores at the Subject Level | idmact_subj |
Elongate Mapping of Raw Scores to Scale Scores | map_elongate |
Elongate Data Frame Mapping of Raw Scores to Scale Scores | map_elongate_df |
Map Scores | map_scores |