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Perencanaan eksperimen dan Pengolahan hasil

Perencanaan eksperimen dan Pengolahan hasil. Cleo Yusainy, PhD. Perencanaan eksperimen : Subjek eksperimen. Populasi dan sampel (random sampling vs. non random sampling) Berapa jumlah minimum sampel yang dibutuhkan dalam sebuah eksperimen ?

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Perencanaan eksperimen dan Pengolahan hasil

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  1. PerencanaaneksperimendanPengolahanhasil Cleo Yusainy, PhD

  2. Perencanaaneksperimen: Subjekeksperimen • Populasidansampel(random sampling vs. non random sampling) • Berapajumlah minimum sampel yang dibutuhkandalamsebuaheksperimen? • Mengapakitaperlumenetapkanjumlahsampel minimum?

  3. Ujihipotesis • Pengaruh IV terhadap DV atauperbedaanantara KE dan KK bisaterjadikarenafaktorkebetulan Hipotesis null (H0) • JikapengaruhatauperbedaantaditidakdisebabkanolehfaktorkebetulanmakaHo ditolak. Artinya? • Perlukriteria yang jelasuntukmenolakH0 : • alpha level (, biasanya 0.05 or 5%). • H0 ditolakhanyajika: • P-value alpha level.

  4. Error Tipe I danTipe II • H0: no wolf 1-  "crying wolf" without a wolf in sight 1 -   fail to see a wolf

  5. Statistical power • Statistical power dibutuhkanuntukmendeteksiadanyapengaruhatauperbedaan yang sesungguhnya. • Statistical power (P) dirumuskan:P = 1 –  • Statistical power biasanyaditetapkanpada0.80 or 80%. Artinya?

  6. Effect size

  7. G*power • G* power http://www.gpower.hhu.de/ http://www.optometry.co.uk/uploads/articles/STATISTICAL%20ARTICLE.pdf http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409926/

  8. Prosedurrandomisasi(random assignment) • Definisirandomisasi? • Tujuanrandomisasi? • Cara randomisasi? • http://www.randomizer.org/ • Contohhasilrandomisasi

  9. Teknikanalisis data • Mempertimbangkanapakahdistribusi DV normal/non-normal • Tergantungpadajumlahdantipe IV dan DV • Apakah data unpairedataupaired • Preliminary analysis  excluded data http://www-users.cs.umn.edu/~ludford/Table_of_Content.htm

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