Content validity of the credibility and expectancy questionnaire in a pain rehabilitation setting

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Content validity, the proper reflection of the concept to be measured, is yet unknown for the Credibility and Expectancy Questionnaire (CEQ). It is frequently used in pain rehabilitation because treatment expectancy is influential on the outcome.

OBJECTIVE: To test and improve the content validity of the CEQ in a sample of patients with chronic pain in different phases of their treatment.

METHODS: A qualitative observational study design using the Three-Step Test-Interview method was used. Therein, data collection, analyses, and adaptations occur iteratively.

RESULTS: Seventeen patients with chronic pain in different stages of treatment participated through convenience sampling from the mother sample of a randomized controlled trial. The main study parameter is content validity, which is defined as (1) interpretations and responses of the participants and (2) the identification of response problems operationalized, and resulting in changes in the CEQ. For patients waiting for treatment, the written instruction of the CEQ allowed different interpretations. After changing the instructions, the CEQ became an easy-to-understand and content-valid questionnaire. For patients who had already undergone treatment, changes regarding time frame and recall period were necessary to overcome interpretation and response problems to the CEQ.

DISCUSSION: After small changes, the CEQ appeared to be a content-valid measurement instrument for patients waiting for treatment. However, for patients who had already undergone treatment, the content validity of the CEQ was less, and considerable changes were necessary.

Original languageEnglish
Pages (from-to)902–913
Number of pages12
JournalPain Practice
Volume17
Issue number7
Early online date2 Dec 2016
DOIs
Publication statusPublished - Sep 2017

Keywords

  • validation studies (MeSH)
  • self-administered questionnaire
  • cognitive interviewing
  • think aloud
  • treatment expectancy
  • pain rehabilitation treatment
  • questionnaire development
  • content validity
  • PATIENT-REPORTED OUTCOMES
  • PRO INSTRUMENTS
  • EXPECTATIONS
  • HEALTH

Cite this

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title = "Content validity of the credibility and expectancy questionnaire in a pain rehabilitation setting",
abstract = "BACKGROUND: Content validity, the proper reflection of the concept to be measured, is yet unknown for the Credibility and Expectancy Questionnaire (CEQ). It is frequently used in pain rehabilitation because treatment expectancy is influential on the outcome.OBJECTIVE: To test and improve the content validity of the CEQ in a sample of patients with chronic pain in different phases of their treatment.METHODS: A qualitative observational study design using the Three-Step Test-Interview method was used. Therein, data collection, analyses, and adaptations occur iteratively.RESULTS: Seventeen patients with chronic pain in different stages of treatment participated through convenience sampling from the mother sample of a randomized controlled trial. The main study parameter is content validity, which is defined as (1) interpretations and responses of the participants and (2) the identification of response problems operationalized, and resulting in changes in the CEQ. For patients waiting for treatment, the written instruction of the CEQ allowed different interpretations. After changing the instructions, the CEQ became an easy-to-understand and content-valid questionnaire. For patients who had already undergone treatment, changes regarding time frame and recall period were necessary to overcome interpretation and response problems to the CEQ.DISCUSSION: After small changes, the CEQ appeared to be a content-valid measurement instrument for patients waiting for treatment. However, for patients who had already undergone treatment, the content validity of the CEQ was less, and considerable changes were necessary.",
keywords = "validation studies (MeSH), self-administered questionnaire, cognitive interviewing, think aloud, treatment expectancy, pain rehabilitation treatment, questionnaire development, content validity, PATIENT-REPORTED OUTCOMES, PRO INSTRUMENTS, EXPECTATIONS, HEALTH",
author = "Vera-Christina Mertens and Albine Moser and Jeanine Verbunt and Rob Smeets and Mari{\"e}lle Goossens",
note = "{\circledC} 2016 World Institute of Pain.",
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Content validity of the credibility and expectancy questionnaire in a pain rehabilitation setting. / Mertens, Vera-Christina; Moser, Albine; Verbunt, Jeanine; Smeets, Rob; Goossens, Mariëlle.

In: Pain Practice, Vol. 17, No. 7, 09.2017, p. 902–913.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Content validity of the credibility and expectancy questionnaire in a pain rehabilitation setting

AU - Mertens, Vera-Christina

AU - Moser, Albine

AU - Verbunt, Jeanine

AU - Smeets, Rob

AU - Goossens, Mariëlle

N1 - © 2016 World Institute of Pain.

PY - 2017/9

Y1 - 2017/9

N2 - BACKGROUND: Content validity, the proper reflection of the concept to be measured, is yet unknown for the Credibility and Expectancy Questionnaire (CEQ). It is frequently used in pain rehabilitation because treatment expectancy is influential on the outcome.OBJECTIVE: To test and improve the content validity of the CEQ in a sample of patients with chronic pain in different phases of their treatment.METHODS: A qualitative observational study design using the Three-Step Test-Interview method was used. Therein, data collection, analyses, and adaptations occur iteratively.RESULTS: Seventeen patients with chronic pain in different stages of treatment participated through convenience sampling from the mother sample of a randomized controlled trial. The main study parameter is content validity, which is defined as (1) interpretations and responses of the participants and (2) the identification of response problems operationalized, and resulting in changes in the CEQ. For patients waiting for treatment, the written instruction of the CEQ allowed different interpretations. After changing the instructions, the CEQ became an easy-to-understand and content-valid questionnaire. For patients who had already undergone treatment, changes regarding time frame and recall period were necessary to overcome interpretation and response problems to the CEQ.DISCUSSION: After small changes, the CEQ appeared to be a content-valid measurement instrument for patients waiting for treatment. However, for patients who had already undergone treatment, the content validity of the CEQ was less, and considerable changes were necessary.

AB - BACKGROUND: Content validity, the proper reflection of the concept to be measured, is yet unknown for the Credibility and Expectancy Questionnaire (CEQ). It is frequently used in pain rehabilitation because treatment expectancy is influential on the outcome.OBJECTIVE: To test and improve the content validity of the CEQ in a sample of patients with chronic pain in different phases of their treatment.METHODS: A qualitative observational study design using the Three-Step Test-Interview method was used. Therein, data collection, analyses, and adaptations occur iteratively.RESULTS: Seventeen patients with chronic pain in different stages of treatment participated through convenience sampling from the mother sample of a randomized controlled trial. The main study parameter is content validity, which is defined as (1) interpretations and responses of the participants and (2) the identification of response problems operationalized, and resulting in changes in the CEQ. For patients waiting for treatment, the written instruction of the CEQ allowed different interpretations. After changing the instructions, the CEQ became an easy-to-understand and content-valid questionnaire. For patients who had already undergone treatment, changes regarding time frame and recall period were necessary to overcome interpretation and response problems to the CEQ.DISCUSSION: After small changes, the CEQ appeared to be a content-valid measurement instrument for patients waiting for treatment. However, for patients who had already undergone treatment, the content validity of the CEQ was less, and considerable changes were necessary.

KW - validation studies (MeSH)

KW - self-administered questionnaire

KW - cognitive interviewing

KW - think aloud

KW - treatment expectancy

KW - pain rehabilitation treatment

KW - questionnaire development

KW - content validity

KW - PATIENT-REPORTED OUTCOMES

KW - PRO INSTRUMENTS

KW - EXPECTATIONS

KW - HEALTH

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VL - 17

SP - 902

EP - 913

JO - Pain Practice

JF - Pain Practice

SN - 1530-7085

IS - 7

ER -