Validation and Measurement Invariance of the Self-Determination Inventory
Adult Report Across Intersecting Demographic Groups
Bibliographic Data
| ID | 22416004 |
|---|---|
| Authors | Rebecca J Townsend (0000-0002-6265-5577, Kansas University Center on Disabilities, corresponding author), Karrie A Shogren (0000-0001-7925-1299, Kansas University Center on Disabilities), Sean Joo (University of Kansas), Tyler A Hicks (0000-0003-3256-7848, Kansas University Center on Disabilities) |
| Year | 2026 |
| Publication date | 2026-07-12 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Journal of Psychoeducational Assessment (JOURNAL) |
| Journal identifiers | ISSN: 0734-2829 • E-ISSN: 1557-5144 |
| Publisher | SAGE Publications (PUBLISHER • US) |
| DOI | 10.1177/07342829261469020 |
| OpenAlex | W7168185490 |
| Language | EN |
| References cited | 31 |
Self-determination is a key predictor of positive life outcomes for people with and without disabilities across the life course. The Self-Determination Inventory: Adult Report (SDI:AR) is a self-report measure designed to assess self-determination in adults. This study examined the psychometric properties of the SDI:AR including internal consistency, factor structure, and measurement invariance across demographic variables of gender (female and male), life stage (early and middle adulthood), and disability status (with and without disabilities). Results demonstrated excellent internal consistency (>0.90) across the full sample and all subgroups. Using a single-factor model, measurement invariance was supported across all demographic group comparisons, allowing for meaningful comparisons of latent means and variances. There is a need to further explore how intersectional identities influence self-determination, particularly among adults with disabilities. Continued validation with underrepresented groups is essential to ensure the SDI:AR aligns with the full range of adult experiences. Implications for research and practice are discussed.
Confirmatory factor analysis · Factor analysis · Internal consistency · Item response theory · Measurement invariance · Psychometrics · Disability Education and Employment · Motivation and Self-Concept in Sports · Occupational Therapy Practice and Research
A motivational theory of life-span development.
Dynamic fit index cutoffs for confirmatory factor analysis models.
Evaluating Goodness-of-Fit Indexes for Testing Measurement Invariance
Sensitivity of Goodness of Fit Indexes to Lack of Measurement Invariance
Cutoff criteria for fit indexes in covariance structure analysis
Measurement Invariance, Factor Analysis and Factorial Invariance
Self-Determination and Causal Agency Theory
The Impact of the Self-Determined Learning Model of Instruction on Student Self-Determination in Inclusive, Secondary Classrooms
Toward a Field of Intersectionality Studies
| Citation velocity | historical |
|---|---|
| Highly cited | No |