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The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation
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| Journal Title: | Journal of Speech, Language, and Hearing Research |
|---|---|
| Authors and Corporations: | , , , , , , , , |
| In: | Journal of Speech, Language, and Hearing Research, 58, 2015, 3, p. 906-919 |
| Type of Resource: | E-Article |
| Language: | English |
| published: |
American Speech Language Hearing Association
|
| Subjects: |
| author_facet |
Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann |
|---|---|
| author |
Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann |
| spellingShingle |
Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann Journal of Speech, Language, and Hearing Research The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation Speech and Hearing Linguistics and Language Language and Linguistics |
| author_sort |
hula, william d. |
| spelling |
Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/2015_jslhr-l-14-0235 <jats:sec> <jats:title>Purpose</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.6170312">https://doi.org/10.23641/asha.6170312</jats:ext-link> </jats:p> </jats:sec> The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation Journal of Speech, Language, and Hearing Research |
| doi_str_mv |
10.1044/2015_jslhr-l-14-0235 |
| facet_avail |
Online |
| finc_class_facet |
Allgemeines Allgemeine und vergleichende Sprach- und Literaturwissenschaft, Indogermanistik, Außereuropäische Sprachen und Literaturen |
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ElectronicArticle |
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| imprint |
American Speech Language Hearing Association, 2015 |
| imprint_str_mv |
American Speech Language Hearing Association, 2015 |
| issn |
1092-4388 1558-9102 |
| issn_str_mv |
1092-4388 1558-9102 |
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English |
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American Speech Language Hearing Association (CrossRef) |
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hula:2015:theaphasiacommunicationoutcomemeasureacomdimensionalityitembankcalibrationandinitialvalidation: |
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2015 |
| publisher |
American Speech Language Hearing Association |
| recordtype |
ai |
| series |
Journal of Speech, Language, and Hearing Research |
| source_id |
49 |
| title |
The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_full |
The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_fullStr |
The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_full_unstemmed |
The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_short |
The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_sort |
the aphasia communication outcome measure (acom): dimensionality, item bank calibration, and initial validation |
| topic |
Speech and Hearing Linguistics and Language Language and Linguistics |
| url |
http://dx.doi.org/10.1044/2015_jslhr-l-14-0235 |
| publishDate |
2015 |
| physical |
906-919 |
| description |
<jats:sec>
<jats:title>Purpose</jats:title>
<jats:p>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.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Method</jats:title>
<jats:p>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.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Results</jats:title>
<jats:p>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.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Conclusions</jats:title>
<jats:p>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.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Supplemental Material</jats:title>
<jats:p>
<jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.6170312">https://doi.org/10.23641/asha.6170312</jats:ext-link>
</jats:p>
</jats:sec> |
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| _version_ | 1778926740653998085 |
| author | Hula, William D., Doyle, Patrick J., Stone, Clement A., Austermann Hula, Shannon N., Kellough, Stacey, Wambaugh, Julie L., Ross, Katherine B., Schumacher, James G., St. Jacque, Ann |
| author_facet | Hula, William D., Doyle, Patrick J., Stone, Clement A., Austermann Hula, Shannon N., Kellough, Stacey, Wambaugh, Julie L., Ross, Katherine B., Schumacher, James G., St. Jacque, Ann, Hula, William D., Doyle, Patrick J., Stone, Clement A., Austermann Hula, Shannon N., Kellough, Stacey, Wambaugh, Julie L., Ross, Katherine B., Schumacher, James G., St. Jacque, Ann |
| author_sort | hula, william d. |
| container_issue | 3 |
| container_start_page | 906 |
| container_title | Journal of Speech, Language, and Hearing Research |
| container_volume | 58 |
| description | <jats:sec> <jats:title>Purpose</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.6170312">https://doi.org/10.23641/asha.6170312</jats:ext-link> </jats:p> </jats:sec> |
| doi_str_mv | 10.1044/2015_jslhr-l-14-0235 |
| facet_avail | Online |
| finc_class_facet | Allgemeines, Allgemeine und vergleichende Sprach- und Literaturwissenschaft, Indogermanistik, Außereuropäische Sprachen und Literaturen |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA0NC8yMDE1X2pzbGhyLWwtMTQtMDIzNQ |
| imprint | American Speech Language Hearing Association, 2015 |
| imprint_str_mv | American Speech Language Hearing Association, 2015 |
| institution | DE-Pl11, DE-Gla1, DE-D275, DE-Bn3, DE-15, DE-Ch1, DE-14, DE-Zi4, DE-L229, FID-MEDIEN-DE-15, DE-Brt1, DE-D161, DE-Rs1 |
| issn | 1092-4388, 1558-9102 |
| issn_str_mv | 1092-4388, 1558-9102 |
| language | English |
| last_indexed | 2023-10-05T14:39:02.549Z |
| match_str | hula:2015:theaphasiacommunicationoutcomemeasureacomdimensionalityitembankcalibrationandinitialvalidation: |
| mega_collection | American Speech Language Hearing Association (CrossRef) |
| physical | 906-919 |
| publishDate | 2015 |
| publishDateSort | 2015 |
| publisher | American Speech Language Hearing Association |
| recordtype | ai |
| series | Journal of Speech, Language, and Hearing Research |
| source_id | 49 |
| spelling | Hula, William D. Doyle, Patrick J. Stone, Clement A. Austermann Hula, Shannon N. Kellough, Stacey Wambaugh, Julie L. Ross, Katherine B. Schumacher, James G. St. Jacque, Ann 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/2015_jslhr-l-14-0235 <jats:sec> <jats:title>Purpose</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>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.</jats:p> </jats:sec> <jats:sec> <jats:title>Supplemental Material</jats:title> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://doi.org/10.23641/asha.6170312">https://doi.org/10.23641/asha.6170312</jats:ext-link> </jats:p> </jats:sec> The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation Journal of Speech, Language, and Hearing Research |
| spellingShingle | Hula, William D., Doyle, Patrick J., Stone, Clement A., Austermann Hula, Shannon N., Kellough, Stacey, Wambaugh, Julie L., Ross, Katherine B., Schumacher, James G., St. Jacque, Ann, Journal of Speech, Language, and Hearing Research, The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation, Speech and Hearing, Linguistics and Language, Language and Linguistics |
| title | The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_full | The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_fullStr | The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_full_unstemmed | The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_short | The Aphasia Communication Outcome Measure (ACOM): Dimensionality, Item Bank Calibration, and Initial Validation |
| title_sort | the aphasia communication outcome measure (acom): dimensionality, item bank calibration, and initial validation |
| topic | Speech and Hearing, Linguistics and Language, Language and Linguistics |
| url | http://dx.doi.org/10.1044/2015_jslhr-l-14-0235 |