What Must the Person Critically Appraising a Qualitative Research Report

What must the person critically appraising a qualitative research report possess as pre-requisites, in order to begin the process?

A) Experience in performing qualitative data collection or analysis
B) A respectful point of view toward the participants' perspectives and reported experiences
C) A basic knowledge of different philosophical perspectives
D) The willingness to learn about the philosophical perspective supporting the study, in order to apply the standards of rigor that are consistent with that perspective
E) Previous experience in critically appraising qualitative research