Quota procedure

Beim Quota-Verfahren werden die Anteile verschiedener Teilklassen in der Population zunächst anhand von Sekundärquellen (Sekundarforschung / Desk research) festgelegt oder geschätzt. Die Grundgesamtheit wird also beispielsweise nach Alter, Geschlecht, Schulbildung, Einkommen, Beruf usw. unterteilt.

The corresponding quotas for the survey are then determined from this. The quotas are distributed among the interviewers so that the survey quotas largely coincide with those of the population in the desired categories. It is at the discretion of the interviewer which respondents he chooses within a quota; he is not bound to the use of randomly controlled procedures.

The advantage of the quota method compared to random selection (selection method, random selection) lies in the lower costs and the simpler technical structure of the investigations. Market surveys using the quota procedure yield sufficiently good results that this selection procedure is used quite frequently.

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