network sampling

a sampling technique in which members of a study group recruit their peers to participate in the research. It is similar in process, benefits, and drawbacks to snowball sampling but distinct in that new participants are acquired directly by existing ones according to certain rules (e.g., no more than four recruits per person) and that various incentives are provided for participation and recruitment.

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Psychology term of the day

December 23rd 2024

delta rule

the principle that the change in strength of an association during learning is a function of the difference between the maximal strength possible and the current strength of the association. The delta rule is used in associationistic learning theory (see associative learning).