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Idrus Alwi
Universitas Indraprasta PGRI Jakarta
Education Mathematics Other

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Kriteria Empirik dalam Menentukan Ukuran Sampel Pada Pengujian Hipotesis Statistika dan Analisis Butir Idrus Alwi
Formatif: Jurnal Ilmiah Pendidikan MIPA Vol 2, No 2 (2012): Formatif: Jurnal Ilmiah Pendidikan MIPA
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.728 KB) | DOI: 10.30998/formatif.v2i2.95

Abstract

Sample-size determination is often an important step in planning statistical study and item analysis and it is usually a difficult one. Among the important hurdles to surpassed, one must obtain an estimate of one or more error variances, and specify an effects size of importance. There is the temptation to take some shortcuts. This paper offers some suggestions for successful and meaningful sample-size determination. Also discussed is the possibility that sample-size may not be the main issue, that the real goal is to design a high-quality study. Finnaly, criticism is made of some ill-advised shortcuts relating to power and sample-size.
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