Comparative Reliability of 108 Scales and Their Short-Form Counterparts

Short-form scales are often necessary for large omnibus surveys. This study compared the reliability of 108 short-form scales and single-item indicators included in the New Zealand Attitudes and Values Study (NZAVS) with their full-form parent counterparts. Scale psychometrics were evaluated using an omnibus dataset pooling multiple samples with a foundation sample that employed a planned missing design presenting a random selection of 66% of the 1,012-item pool to n=2,947 undergraduates. Comparative reliability estimates for all short and full-form scales are reported. The majority of short-form scales displayed adequate reliability, indexed by coefficient omega. Fit statistics for all 108 full-form scales are also reported, and factor loadings are provided in an online supplement. These results calibrate conclusions for studies that necessarily employ short-form scales, and indicate that the majority of short-form scales employed by the NZAVS display adequate internal reliability relative to their original full-form (parent) versions.

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Publication Details

Journal
New Zealand journal of psychology
Published
2024-12-31
DOI
https://doi.org/10.63146/001c.138416
Citations
5
Primary Topic
Education, Safety, and Science Studies
Type
article
Field-Weighted Citation Impact
2.63

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article

Comparative Reliability of 108 Scales and Their Short-Form Counterparts

Danny Osborne, Kieren J. Lilly, Samantha Stronge, Daryl R. Van Tongeren et al.
5 citations
New Zealand journal of psychology
Education, Safety, and Science Studies
2.63
article

Comparative Reliability of 108 Scales and Their Short-Form Counterparts

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article en
5 citations

Abstract

Short-form scales are often necessary for large omnibus surveys. This study compared the reliability of 108 short-form scales and single-item indicators included in the New Zealand Attitudes and Values Study (NZAVS) with their full-form parent counterparts. Scale psychometrics were evaluated using an omnibus dataset pooling multiple samples with a foundation sample that employed a planned missing design presenting a random selection of 66% of the 1,012-item pool to n=2,947 undergraduates. Comparative reliability estimates for all short and full-form scales are reported. The majority of short-form scales displayed adequate reliability, indexed by coefficient omega. Fit statistics for all 108 full-form scales are also reported, and factor loadings are provided in an online supplement. These results calibrate conclusions for studies that necessarily employ short-form scales, and indicate that the majority of short-form scales employed by the NZAVS display adequate internal reliability relative to their original full-form (parent) versions.

New Zealand journal of psychologyVol. 53(2)
Hope College (US), University of Auckland (NZ), The University of Queensland (AU), University of Canterbury (NZ), Victoria University of Wellington (NZ), Hue University (VN), University of Education (PK)
Templeton Religion Trust
Openalex Percentile: Top 8%
Education, Safety, and Science Studies
2.63
DOIOpen Access PDFOpenAlex
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