Development of the Work In Progress Questionnaire

Study Overview
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Brief Summary
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The aim of this study is to describe the development of the Work In Progress questionnaire, a tool designed to evaluate commitment in persons, and its psychometric validation process in the context of low back pain.

Detailed Description
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The study design is cross-sectional. The following methodology will be applied as for the development of the Work In Progress questionnaire (WIP), a tool designed to evaluate commitment in persons, and its psychometric validation: item generation and selection: the first defines the content of an index and ensures the most important topics are well-thought-out. The second eliminates redundant items, and decreases the number to a total that is feasible to administer while ensuring the scale measures the construct of interest. psychometric analysis: reliability (internal consistency by Cronbach's alpha, test-retest reliability by Intraclass Correlation Coefficient 2.1), Measurement error (calculated by multiplying the standard error of measurement (SEM) by the z-score associated with the desired level of confidence (95%, in our case) and the square root of 2), and construct validity by hypothesis testing the correlations (Pearson r) with related measures (Pain Catastrophizing Scale, Oswestry Disability Scale, Numerical pain Rating Scale).

Official Title
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What Can I do for my Low Back Pain? The Work In Progress Questionnaire!

Conditions
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Low Back Pain

Intervention / Treatment
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* Diagnostic Test: This is a non-interventional study


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Low Back Pain adult age reading/speaking Italian. Exclusion Criteria: systemic illness, mental deficits, recent cerebrovascular accidents or myocardial infarctions, chronic lung or renal diseases; refusal to adhere.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: This is a non-interventional study|None (this is a non-interventional study)|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| WIP questionnaire | Work In Progress questionnaire; score varying from 0 to 30, with higher scores indicating greater commitment | At the moment of the questionnaire administration | 
| WIP questionnaire | Work In Progress questionnaire; score varying from 0 to 30, with higher scores indicating greater commitment | After 7-10 days later the first assessment (please, see above) as concerns test-retest assessment reliability. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| PCS | Pain Catastrophizing Scale; score varying from 0 to 52, with higher scores indicating greater catastrophizing | At the moment of the questionnaire administration | 
| ODI | Oswestry Disability Index; score varying from 0 to 50, with higher scores indicating greater disability | At the moment of the questionnaire administration | 
| pain NRS | Numerical pain Rating Scale; score varying from 0 to 10, with higher scores indicating greater pain intensity | At the moment of the questionnaire administration | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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outcome measures, commitment, people, psychology, behavioural medicine