Reliability and validity study of a Turkish version of the Communicative Effectiveness Survey-Revised (CES-R)

Area of Science:

• Speech and Language Pathology
• Neurology
• Psychometrics

Background:

• Communication is significantly impaired in people with Parkinson's disease (PwPD).
• Self-assessment tools are crucial for evaluating PwPD's communication perspectives and difficulties.
• Existing self-assessment scales need validation for specific linguistic and cultural contexts.

Purpose of the Study:

• To develop and validate a Turkish version of the Communicative Effectiveness Survey-Revised (CES-R).
• To assess the reliability and validity of the Turkish CES-R in PwPD.
• To determine the scale's applicability for assessing communication challenges in Turkish-speaking PwPD.

Main Methods:

• The study involved 106 PwPD and 106 healthy controls.
• The CES-R was translated into Turkish following international adaptation guidelines.
• Participants completed the Turkish CES-R and Voice Handicap Index-10; the CES-R was re-administered after 2 weeks.

Main Results:

• Exploratory factor analysis indicated the data were highly suitable for analysis (KMO=0.956, Bartlett's p<0.01).
• The Turkish CES-R demonstrated good validity, explaining 63.5% of the variance across two dimensions: general and difficult communication situations.
• High reliability was confirmed with Cronbach's alpha coefficients of 0.958 (PwPD) and 0.955 (controls).

Conclusions:

• The Turkish CES-R is a valid, reliable, and usable self-assessment tool for PwPD.
• This validated scale aids in assessing communication difficulties in Turkish PwPD.
• The two-dimensional structure (general and difficult situations) offers a comprehensive assessment for intervention planning.