Purposive Sampling as a Tool for Informant Selection

Abstract

Informant selection is highly relevant for ethnobotanical research, as people are constantly looked upon for knowledge and information. The purposive sampling technique is a type of non-probability sampling that is most effective when one needs to study a certain cultural domain with knowledgeable experts within. Purposive sampling may also be used with both qualitative and quantitative research techniques. The inherent bias of the method contributes to its efficiency, and the method stays robust even when tested against random probability sampling. Choosing the purposive sample is fundamental to the quality of data gathered; thus, reliability and competence of the informant must be ensured.

Internal brand co-creation: The experiential brand meaning cycle in higher education

“…Exploratory research was conducted to gain insight into the co-creation of brand meaning, specifically to capture and understand the relationship between the employee, the brand, and the organization. Purposive sampling was adopted to select participants who could contribute to building an understanding of the phenomena (Coyne, 1997;Tongco, 2007). Participants, who have lived experiences with the HE brand meaning development, were recruited from a university in México, which has more than 30 campuses throughout the country (Groenewald, 2004;Laverty, 2003).…”

Comparison of Convenience Sampling and Purposive Sampling

“…It then becomes imperious that selecting the manner of obtaining data and from whom the data will be acquired be done with sound judgment, especially since no amount of analysis can make up for improperly collected data [21]. The purposive sampling technique, also called judgment sampling, is the deliberate choice of a participant due to the qualities the participant possesses.…”

Áreas Protegidas Marinho-Costeiras De Santa Catarina Sob a Perspectiva Das Populações Locais: Contribuições Da Literatura

“…When employing this approach it is essential to present the criteria for selection of informants, enabling other researchers to replicate the methodology and obtain comparable results (TONGCO, 2007), which also provides managers with greater detail to assist in decision making. In some studies we could not clearly identify such criteria nor the sampling effort (Table 2).…”