Addressing Underrepresentation in Sex Work Research: Reflections on Designing a Purposeful Sampling Strategy.

Men, transgender people, and those working in off-street locales have historically been underrepresented in sex work health research. Failure to include all sections of sex worker populations precludes comprehensive understandings about a range of population health issues, including potential variations in the manifestation of such issues within and between population subgroups, which in turn can impede the development of effective services and interventions. In this article, we describe our attempts to define, determine, and recruit a purposeful sample for a qualitative study examining the interrelationships between sex workers' health and the working conditions in the Vancouver off-street sex industry. Detailed is our application of ethnographic mapping approaches to generate information about population diversity and work settings within distinct geographical boundaries. Bearing in mind the challenges and the overwhelming discrimination sex workers experience, we scope recommendations for safe and effective purposeful sampling inclusive of sex workers' heterogeneity.

Case sampling for psychotherapy practice, theory, and policy guidance: Qualities and quantities.

Random sampling of cases is usually infeasible for psychotherapy research, so opportunistic and purposive sampling must be used instead. Such sampling does not justify generalizations from sample to population-distribution statistics, but does justify reporting what independent-variable value configurations are associated with what dependent-variable value configurations. This allows only the generalization that these associations occur at least that frequently in the population sampled from, which is enough for suggesting and testing some psychotherapy theories and informing some psychotherapy practice. Although psychotherapy practice is a longitudinal process, formal psychotherapy outcome research is so far most feasible and most widely done in the form of two-phase cross-sectional input-outcome studies. Thus, the analysis of sampling for psychotherapy research here will be in terms of the independent- and dependent-variable value configurations produced in such two-phase studies.

Purposeful Sampling: Advantages and Pitfalls.

This editorial monograph explores the advances and pitfalls of the common forms of purposeful sampling. Purposeful sampling is a common research design in qualitative research.

International Counseling Values: Recognizing Valued Approaches Identified by International Counseling Professionals Through Qualitative Inquiry.

People may assume that the counseling profession functions with a shared set of values that promote well-being and mental health to individuals, families, and communities across the globe. Common values, such as described in training programs, ethical codes, and other areas, reflect the approach and direction for providing professional counseling services among counseling professionals throughout the world. The researchers designed this qualitative study using a phenomenological approach to explore how counseling values are experienced and implemented across various cultures. The 16 participants of the study include counseling professionals from different countries to increase representation from eight regions of the world. The researchers recognize valued approaches commonly identified among the participants implementing counseling services, including marital and family counseling, child and school counseling, faith integration, indigenous practices, and person-centered safe spaces. While each of these valued approaches is described in detail, final applications of the data offer proposed steps to improve the advancement of counseling on a global scale, including strategies for transcultural counseling training, resource adaptability, and bilateral development in the profession.