The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation

2015 ◽  
Vol 58 (3) ◽  
pp. 906-919 ◽  
Author(s):  
William D. Hula ◽  
Patrick J. Doyle ◽  
Clement A. Stone ◽  
Shannon N. Austermann Hula ◽  
Stacey Kellough ◽  
...  
Keyword(s):  
Outcome Measure ◽  
Factor Model ◽  
Measurement Model ◽  
Item Bank ◽  
Measurement Properties ◽  
Model Parameters ◽  
Good Precision ◽  
Good Convergence ◽  
Patient Reported ◽  
Communication Outcome

Purpose The purpose of this study is to investigate the structure and measurement properties of the Aphasia Communication Outcome Measure (ACOM), a patient-reported outcome measure of communicative functioning for persons with aphasia. Method Three hundred twenty-nine participants with aphasia responded to 177 items asking about communicative functioning. The data were analyzed using a categorical item factor analysis approach. Validity of ACOM scores on the basis of their convergence with performance-based, clinician-reported, and surrogate-reported assessments of communication was also assessed. Results Fifty-nine items that obtained adequate fit to a modified bifactor measurement model and functioned similarly across several demographic and clinical subgroupings were identified. The factor model estimates were transformed to item response theory graded response model parameters, and the resulting score estimates showed good precision and moderately strong convergence with other measures of communicative ability and functioning. A free software application for administration and scoring of the ACOM item bank is available from the first author. Conclusions The ACOM provides reliable measurement of patient-reported communicative functioning in aphasia. The results supported the validity of ACOM scores insofar as (a) factor analyses provided support for a coherent measurement model, (b) items functioned similarly across demographic and clinical subgroups, and (c) scores showed good convergence with measures of related constructs.

Construct Validity of the Maslach Burnout Inventory: Two Swedish Health Care Samples

2004 ◽  
Vol 20 (4) ◽  
pp. 320-338 ◽  
Author(s):  
Ulrika E. Hallberg ◽  
Magnus Sverke
Keyword(s):  
Health Care ◽  
Construct Validity ◽  
Factor Model ◽  
Strong Support ◽  
Maslach Burnout Inventory ◽  
Measurement Model ◽  
Personal Accomplishment ◽  
Model Parameters ◽  
Model Stability ◽  
Two Samples

Summary: Burnout has become a serious matter in workplace health, and the Maslach Burnout Inventory (MBI) is today the most widely used instrument for assessing the construct empirically. The present study examined the construct validity of a Swedish translation of the instrument for human service employees (MBI-HSS). Data from two samples of health care workers (N = 448 and N = 462) were used to test six propositions concerning dimensionality, internal consistency, measurement model stability, and relationships with predictors and outcomes. Support for the postulated three-factor model of emotional exhaustion, depersonalization, and (reduced) personal accomplishment as well as for adequate reliabilities of the dimensions was found. A post hoc modification of the MBI was suggested in order to improve model fit. Multi-group confirmatory factor analysis indicated stability of measurement model parameters across organizational settings. Moreover, the propositions about the association between the burnout dimensions, and predictors and outcomes were partly supported. Taken together, these tests provide strong support for the construct validity of the Swedish translation of the MBI-HSS.

The Aphasia Communication Outcome Measure: Motivation, Development, Validity Evidence, and Interpretation of Change Scores

2021 ◽  
Vol 42 (03) ◽  
pp. 211-224
Author(s):  
William D. Hula ◽  
Patrick J. Doyle
Keyword(s):  
Item Response ◽  
Outcome Measure ◽  
Evidence Based ◽  
Validity Evidence ◽  
Initial Development ◽  
Change Scores ◽  
Patient Reported ◽  
Theory Framework ◽  
Communication Outcome ◽  
Interpretation Of Change

AbstractThe Aphasia Communication Outcome Measure (ACOM) is a patient-reported measure of communicative functioning developed for persons with stroke-induced aphasia. It was motivated by the desire to include the perspective of persons with aphasia in the measurement of treatment outcomes and to apply newly accessible psychometric tools to improve the quality and usefulness of available outcome measures for aphasia. The ACOM was developed within an item response theory framework, and the validity of the score estimates it provides is supported by evidence based on its content, internal structure, relationships with other variables, stability over time, and responsiveness to treatment. This article summarizes the background and motivation for the ACOM, the steps in its initial development, evidence supporting its validity as a measure of patient-reported communication functioning, and current recommendations for interpreting change scores.

scholarly journals Measurement properties of the Dutch–Flemish patient-reported outcomes measurement information system (PROMIS) physical function item bank and instruments: a systematic review

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Inger L. Abma ◽  
Bas J. D. Butje ◽  
Peter M. ten Klooster ◽  
Philip J. van der Wees
Keyword(s):  
Patient Reported Outcomes ◽  
Measurement Precision ◽  
Item Bank ◽  
Measurement Properties ◽  
Structural Validity ◽  
Short Forms ◽  
Item Banks ◽  
High Quality Evidence ◽  
Patient Reported

Abstract Background Limitations in physical functioning are a big concern especially for patients with chronic or musculoskeletal diseases. Therefore, physical functioning is often used as a core outcome of treatments. The generic patient-reported outcomes information system (PROMIS) physical function (PF) item bank has shown potential to measure PF with better precision, interpretability and lower respondent burden compared with traditional patient-reported outcome measures. This study provides an overview of the current evidence on the quality of the measurement properties of the translated Dutch–Flemish PROMIS-PF item bank and its subdomains, and their derived short forms and computer adaptive tests (CATs). Methods PubMed was searched up to June 17th 2020 for validation studies of Dutch–Flemish PROMIS-PF in Dutch and Flemish adults. Quality assessment of the included studies was conducted using the COSMIN Risk of bias checklist. The COSMIN criteria for good measurement properties were used to judge the results of the studies, which were adjusted and added to where needed for this review, in the context of IRT instruments and item banks. The quality of evidence was summarized for each measurement property based on the Grading of Recommendation Assessment, Development, and Evaluation (GRADE) approach. Results Eleven studies were included, evaluating the PROMIS-PF item bank, the Upper Extremity (UE) subdomain, and/or their derived short forms and CATs in different clinical populations. There is evidence for sufficient structural validity, measurement precision, construct validity, and cross-cultural validity of the Dutch–Flemish PROMIS-PF item bank. The upper extremity subdomain item bank shows high quality evidence for structural validity and measurement precision. Content validity of these item banks has not been thoroughly demonstrated in a Dutch–Flemish population. Furthermore, the derived instruments have far less robust evidence: there are fewer validation studies available and none examined their performance as stand-alone administered instruments. Conclusions The first studies into the Dutch–Flemish PROMIS-PF item bank and the UE subdomain show promising results, with especially high quality evidence for sufficient structural validity and measurement precision. However, more studies, and with higher methodological quality, are needed to study the instruments derived from these item banks. These studies should also evaluate content validity, reliability and responsiveness.

The Aphasia Communication Outcome Measure

2012 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Patrick Doyle ◽  
William Hula
Keyword(s):  
Outcome Measure ◽  
Communication Outcome

Instrumental and Ideological Union Commitment: Longitudinal Assessment of Construct Validity

2001 ◽  
Vol 17 (2) ◽  
pp. 98-111 ◽  
Author(s):  
Anders Sjöberg ◽  
Magnus Sverke
Keyword(s):  
Construct Validity ◽  
Temporal Stability ◽  
Strong Support ◽  
Internal Consistency Reliability ◽  
Measurement Model ◽  
Two Dimensions ◽  
Model Parameters ◽  
Longitudinal Assessment ◽  
Union Commitment ◽  
Union Participation

Summary: Previous research has identified instrumentality and ideology as important aspects of member attachment to labor unions. The present study evaluated the construct validity of a scale designed to reflect the two dimensions of instrumental and ideological union commitment using a sample of 1170 Swedish blue-collar union members. Longitudinal data were used to test seven propositions referring to the dimensionality, internal consistency reliability, and temporal stability of the scale as well as postulated group differences in union participation to which the scale should be sensitive. Support for the hypothesized factor structure of the scale and for adequate reliabilities of the dimensions was obtained and was also replicated 18 months later. Tests for equality of measurement model parameters and test-retest correlations indicated support for the temporal stability of the scale. In addition, the results were consistent with most of the predicted differences between groups characterized by different patterns of change/stability in union participation status. The study provides strong support for the construct validity of the scale and indicates that it can be used in future theory testing on instrumental and ideological union commitment.

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