الأسس المنهجية لاختيار عينة ممثلة لمجتمع البحث

الملخص EN

This humble article deals with the scientific and methodological foundations that relate to the search procedures by sample, which are considered necessary by the circumstances of the research, showing how to determine: The research community and the sample units, the controls and procedures associated with determining the size of the sample, types The previews and how they are chosen in relation to the subject and objectives of the research, as well as the whole community of study.