AP PSYCHOLOGY

Detailed explanation-1: -Sampling is the process of selecting a representative group from the population under study. The target population is the total group of individuals from which the sample might be drawn. A sample is the group of people who take part in the investigation. The people who take part are referred to as “participants”.

Detailed explanation-2: -Population is divided into subgroups, called strata, according to some variable or variables in importance to the study. Variables often used include: age, gender, ethnic origin, SES, diagnosis, geographic region, institution, or type of care.

Detailed explanation-3: -Understanding Samples In simple terms, a population is the total number of observations (i.e., individuals, animals, items, data, etc.) contained in a given group or context. A sample, in other words, is a portion, part, or fraction of the whole group, and acts as a subset of the population.

Detailed explanation-4: -Sample-A subgroup of the elements of the population selected for participation in the study. Population is the aggregates of all elements. An element is the object about which or from which the information is desired, for example, the participant.

Detailed explanation-5: -Stratified sampling To use this sampling method, you divide the population into subgroups (called strata) based on the relevant characteristic (e.g., gender identity, age range, income bracket, job role).