Establishing Validity of SLICE –As an Assessment Instrument of Long Case

Abstract

Objective: To establish the content and construct validity of Structured Long Interview and Clinical Examination(SLICE) as an instrument for the assessment of long case. Study Design: This was a quantitative analytical study. Place and Duration of Study: The study was conducted at Pakistan Railway General Hospital during the period between March 01, 2016 to August 31, 2016. Materials and Methods: SLICE is a tool of Long Case assessment, however, it's content and construct validity are not established. Examiners, who had used SLICE for the long case assessment, were requested to fill the questionnaire. The questionnaire contained questions about the relevance and clarity of SLICE. Each examiner individually rated the relevance and clarity of all the items on the SLICE using a five point Likert Scale. Content validity index of SLICE was established for individual items and overall scale. The construct validity of SLICE was determined by factor analysis using principal component analysis method. Results: Content Validity Index of SLICE (S-CVI), for relevance and clarity was 0.92 and 0.90 respectively. KMO value of SLICE was 0 .655. Bartlett test value of SLICE was 0.00. Conclusion: The content validity index for overall scale (S-CVI) and construct validity indicates that SLICE is a valid instrument for the long case assessment.

Keywords

• assessment, long case, slice, validity.