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21-05-2018 | Brief Communication

The modified Memorial Symptom Assessment Scale Short Form: a modified response format and rational scoring rules

Auteurs: J. L. Sharp, K. Gough, M. C. Pascoe, A. Drosdowsky, V. T. Chang, P. Schofield

Gepubliceerd in: Quality of Life Research | Uitgave 7/2018

Abstract

Purpose

The Memorial Symptom Assessment Scale Short Form (MSAS-SF) is a widely used symptom assessment instrument. Patients who self-complete the MSAS-SF have difficulty following the two-part response format, resulting in incorrectly completed responses. We describe modifications to the response format to improve useability, and rational scoring rules for incorrectly completed items.

Methods

The modified MSAS-SF was completed by 311 women in our Peer and Nurse support Trial to Assist women in Gynaecological Oncology; the PeNTAGOn study. Descriptive statistics were used to summarise completion of the modified MSAS-SF, and provide symptom statistics before and after applying the rational scoring rules. Spearman’s correlations with the Functional Assessment for Cancer Therapy-General (FACT-G) and Hospital Anxiety and Depression Scale (HADS) were assessed.

Results

Correct completion of the modified MSAS-SF items ranged from 91.5 to 98.7%. The rational scoring rules increased the percentage of useable responses on average 4% across all symptoms. MSAS-SF item statistics were similar with and without the scoring rules. The pattern of correlations with FACT-G and HADS was compatible with prior research.

Conclusion

The modified MSAS-SF was useable for self-completion and responses demonstrated validity. The rational scoring rules can minimise loss of data from incorrectly completed responses. Further investigation is recommended.

vorige artikel The importance of content and face validity in instrument development: lessons learnt from service users when developing the Recovering Quality of Life measure (ReQoL)

volgende artikel Validation of the PROMIS Sleep Disturbance and Sleep-Related Impairment item banks in Dutch adolescents

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Titel: The modified Memorial Symptom Assessment Scale Short Form: a modified response format and rational scoring rules
Auteurs: J. L. Sharp
K. Gough
M. C. Pascoe
A. Drosdowsky
V. T. Chang
P. Schofield
Publicatiedatum: 21-05-2018
Uitgeverij: Springer International Publishing
Gepubliceerd in: Quality of Life Research / Uitgave 7/2018
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI: https://doi.org/10.1007/s11136-018-1855-y

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