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Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

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

William D Hula, Patrick J Doyle, Clement A Stone

Journal of Speech, Language, and Hearing Research : JSLHR

|March 27, 2015

Summary

This summary is machine-generated.

The Aphasia Communication Outcome Measure (ACOM) reliably assesses patient-reported communication in aphasia. This validated tool shows good precision and convergence with other measures, aiding in understanding communicative functioning.

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Area of Science:

Neuroscience
Speech-Language Pathology
Psychometrics

Background:

Aphasia significantly impacts communicative functioning.
Patient-reported outcome measures (PROMs) are crucial for assessing quality of life and functional status in individuals with aphasia.
The Aphasia Communication Outcome Measure (ACOM) was developed to address this need.

Purpose of the Study:

To investigate the psychometric properties and measurement structure of the Aphasia Communication Outcome Measure (ACOM).
To evaluate the ACOM as a patient-reported outcome measure for communicative functioning in persons with aphasia.

Main Methods:

A cohort of 329 participants with aphasia completed 177 items assessing communicative functioning.
Categorical item factor analysis was employed to analyze the data.
Validity was assessed through convergence with performance-based, clinician-reported, and surrogate-reported communication assessments.

Main Results:

A modified bifactor measurement model identified 59 items with adequate fit and similar functioning across subgroups.
Item response theory parameters demonstrated good precision for score estimates.
ACOM scores showed moderately strong convergence with other measures of communicative ability.

Conclusions:

The ACOM demonstrates reliable measurement of patient-reported communicative functioning in aphasia.
Factor analyses supported a coherent measurement model for the ACOM.
ACOM scores are valid, evidenced by consistent item performance across subgroups and convergence with related measures.