T-Test Group Statistics Mean Std Dewation 99931 98314 Mean T1 Students sexN Male

Question

T-Test Group Statistics Mean Std Dewation 99931 98314 Mean T1 Students sexN Male 8619 8645 1565 0818 01076 01057 T1 Scale of student's science sell efticacy Female Independent Samples Test Levene's Test for Equality of Varnances Hest for Equaity of Means 95% confidence interval of the Diference d ErrorNEUppr vean Sig (2-tailed) DiferenceDTerence Sig Equal variand assumad 857 15792 197 17262 23828 01509 20870 26785 science set officacy Equal variances not assumad 15.792 17255 552 23028 01509 20870 26785

Explanation / Answer

Effect size = (Mean1-Mean2)/ Standard deviation of group = (0.1565+0.0818) / SQRT[( 8619*0.99931^2 + 8645* 0.98314)/(8619+8645)] = (0.1565+0.0818)/0.99124 = 0.24

Effect size close to 0.2 is considered to be a small effect size.

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