Questionnaire_Validation_Research_Presentation.pptx

Questionaire validation step by step

1. A Step-by-Step Guide to Questionnaire Validation Research Based on the book by Mohamad Adam Bujang et al. (2022) Postgraduate Presentation Formal Academic Style Theme: Blue & White

2. Overview This presentation provides a detailed academic review of the book: ‘A Step-by-Step Guide to Questionnaire Validation Research’ (Bujang et al., 2022). It explores the conceptual and methodological foundations of questionnaire validation in health and social research.

3. Objectives 1. Explain the rationale and need for questionnaire validation. 2. Describe the types of questionnaires. 3. Outline the processes of content, face, and construct validity. 4. Explain reliability and validity testing methods. 5. Discuss practical considerations and ethical implications.

4. Why Validation is Important Validation ensures that a translated or adapted questionnaire measures the same construct across populations. Without validation, findings may be unreliable or culturally biased.

5. Four Types of Questionnaires 1. Type 1 – Collect factual information 2. Type 2 – Assess knowledge level 3. Type 3 – Screening/diagnostic assessment 4. Type 4 – Measure latent variables

6. Content Validity Assesses whether questionnaire items fully represent the construct being measured. Typically evaluated by Subject Matter Experts (SMEs).

7. Translation Process Involves forward and backward translation to ensure semantic and conceptual equivalence. Includes input from both linguistic and subject experts.

8. Face Validity Assesses whether the questionnaire ‘appears’ to measure the intended concept from the respondent’s perspective. Involves cognitive debriefing and feedback.

9. Pilot Studies Conducted on a small sample (20–50) to test feasibility, reliability, and clarity before full-scale validation.

10. Reliability Testing Measures internal consistency and stability of responses. Methods include Cronbach’s Alpha, test-retest reliability, and inter-rater reliability.

11. Validity Testing Includes concurrent, predictive, diagnostic, and construct validity. Each assesses different aspects of how well the tool measures what it is intended to.

12. Ethical and Practical Considerations Researchers must obtain permission to use copyrighted instruments, ensure cultural appropriateness, and report psychometric findings transparently.

13. Conclusion A well-validated questionnaire enhances the credibility, reproducibility, and cross-cultural applicability of research findings. Researchers should follow a systematic process guided by statistical and ethical rigor.