Two Groups Too Many? Try Analysis of Variance

Presentasi berjudul: "Two Groups Too Many? Try Analysis of Variance"— Transcript presentasi:

1 Two Groups Too Many? Try Analysis of Variance
Ratri Psikologi Pendidikan UNJ

2 Introduction to Analysis
ANOVA digunakan karena ada lebih dari dua kelompok yang diuji/dibandingkan. Tes statistik untuk ANOVA dinamakan tes F, (F test), berasal dari nama R.A. Fisher, ahli statistik. Apa lagi yaa? Baca buku statistik lain!!

3 The Path to Wisdom and Knowledge
We are testing for differences between scores of the different groups. Respondents are not being tested more than once There are several groups (ex. three groups) The appropriate test statistic is simple analysis of variance

4 Different Flavors of Anova
Anova  penggunaannya bervariasi Salah satunya adalah  Simple analysis of variance Dimana: hanya ada satu faktor atau satu variabel perlakuan yang diteliti dalam lebih dari dua kelompok Simple ANOVA  One way ANOVA Salkind, p:

5 Computing The Test Statistic
Rumus: F = MSbetween MSwithin MS = Means Sum of Square

6 Ilustrasi perhitungan data
Groups 1 Group 2 Group 3 87 86 76 56 78 98 77 66 75 67 85 99 79 81 82 91 89 96 90 93

7 Step by Step... Step 1 * A statement of the null and research hypothesis H0: µ1 = µ2 = µ3 H1: X1 ≠ X2 ≠ X3 Step 2 * Setting the LoS  0.05 Step 3 * Selection of appropriate test  Simple ANOVA

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