Turkish Version of the Pictorial Pain Interference Questionnaire

NCT07761208 | Not Yet Recruiting

• 1 other identifier: 101
• Study Type: observational
• Target: 100
• Locations: 0 countries
• Sites: N/A

Brief Summary

This study aims to culturally adapt the Pictorial Pain Interference Questionnaire into Turkish and evaluate its psychometric properties in individuals with chronic pain. The study will assess the validity and reliability of the Turkish version for evaluating the functional impact of chronic pain on daily life activities. Reliability will be examined through internal consistency and test-retest reliability, while validity will be assessed by examining the relationships between the questionnaire and established pain-related assessment tools. The study will determine whether the Turkish version provides a valid, reliable, and practical instrument for assessing functional interference associated with chronic pain in Turkish-speaking individuals.

Conditions

Pain; Pain Management

Keywords

Chronic Pain; Pain Interference; Pictorial Pain Interference Questionnaire; Psychometric Properties; Turkish Version

Outcome Measures

Primary Outcomes (6)

• Internal Consistency of the Turkish Pictorial Pain Interference Questionnaire

  Internal consistency will be assessed using Cronbach's alpha coefficient.

  At the first assessment (Baseline)

• Test-Retest Reliability of the Turkish Pictorial Pain Interference Questionnaire

  Test-retest reliability will be assessed using the Intraclass Correlation Coefficient (ICC) based on assessments performed 7 days apart.

  Baseline and 7 days

• Construct Validity of the Turkish Pictorial Pain Interference Questionnaire

  Construct validity will be evaluated by examining the correlations between the questionnaire scores and scores from the Brief Pain Inventory.

  Baseline

• Construct Validity of the Turkish Pictorial Pain Interference Questionnaire

  Construct validity will be evaluated by examining the correlations between the questionnaire scores and scores from the Pain Disability Index.

  Baseline

• Construct Validity of the Turkish Pictorial Pain Interference Questionnaire

  Construct validity will be evaluated by examining the correlations between the questionnaire scores and scores from the Oswestry Disability Index.

  Baseline

• Construct Validity of the Turkish Pictorial Pain Interference Questionnaire

  Construct validity will be evaluated by examining the correlations between the questionnaire scores and scores from the Short-Form McGill Pain Questionnaire.

  Baseline

Secondary Outcomes (1)

• Discriminant Validity of the Turkish Pictorial Pain Interference Questionnaire

  Baseline

Interventions

No Interventions OTHER

This is an observational psychometric validation study. Participants are not assigned to receive any therapeutic intervention; they complete the questionnaires and assessments specified in the study protocol.

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Adults aged 18 years and older with chronic pain lasting for at least 3 months

You may qualify if:

• Having chronic pain lasting for at least 3 months.
• Willing to participate in the study and providing informed consent.
• Having sufficient cognitive ability to understand the questions.

You may not qualify if:

• Severe cognitive impairment (e.g., dementia) or conditions that interfere with communication.
• Inability to cooperate due to a psychiatric disorder.
• Neurological or serious systemic diseases that may affect the assessment.
• Incomplete or incorrectly completed questionnaires.
• Refusal to participate or withdrawal from the study.

Sponsors & Collaborators

• Istinye University: lead

MeSH Terms

Conditions

Pain; Agnosia; Chronic Pain

Condition Hierarchy (Ancestors)

Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Perceptual Disorders; Neurobehavioral Manifestations; Nervous System Diseases

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor (Dr.)

Study Record Dates

• First Submitted: August 8, 2026
• First Posted: August 12, 2026
• Study Start (Estimated): August 20, 2026
• Primary Completion (Estimated): February 15, 2027
• Study Completion (Estimated): February 22, 2027
• Last Updated: August 12, 2026

Record last verified: 2026-08