Question: To prepare for this Discussion:

• There are "rules of thumb" that guide each qualitative approach. Review Patton's chapter on sampling types, and study sampling strategies in research articles on the approach you have chosen.

• Review the articles on data saturation and theoretical saturation, and consider which criteria you will follow to estimate "how many." Remember, in qualitative research, one case can be enough. If your phenomenon is complex or you are interested in a range of experiences, then you will need more cases.

• Reflect on your research problem and question. What are the essential characteristics of participants that you want to recruit?

Address the following:

• Present the most current version of your research question and state the phenomenon of interest (research question is: What are African American parents' experiences with behavioral therapy for children who have oppositional defiance, aggressive behaviors with autistic disorder level 1 ages 5 to 6 in the home setting with behavioral health rehabilitation services in an urban setting in the Northeast US?)

• Describe the criteria for inclusion and exclusion.

• Describe in detail the choices for sample size, data saturation, and theoretical saturation. Justify your choices with citations of research studies that use the same strategy and/or of methodological articles that describe the rationale.

• Put yourself in the participant's position and consider the assurances you would want to hear to ensure that your privacy is respected and that your identity will not be revealed when the study is published. Include those assurances in your invitation.