Question: [DataSet4] Group Statistics Std. Error Groups N Mean Std. Deviation Mean Scores No News 7 34.8571 21.98809 8.31072 Treatment Only 7 64.1429 20.45669 7.73190 Independent

[DataSet4] Group Statistics Std. Error Groups N Mean Std. Deviation Mean Scores No News 7 34.8571 21.98809 8.31072 Treatment Only 7 64.1429 20.45669 7.73190 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Mean Std. Error Difference F Sig. df Sig. (2-tailed) Difference Difference Lower Upper Scores Equal variances 212 .653 -2.580 12 024 -29.28571 11.35123 -54.01791 4.55352 assumed Equal variances not -2.580 11.938 .024 -29.28571 11.35123 -54.03217 -4.53926 assumed Independent Samples Effect Sizes Point 95% Confidence Interval Standardizer" Estimate Lower Upper Scores Cohen's d 21.23620 -1.379 -2.538 .175 Hedges' correction 22.68966 -1.291 -2.375 -.164 Glass's delta 20.45669 -1.432 -2.709 -.083 a. The denominator used in estimating the effect sizes. Cohen's d uses the pooled standard deviation. Hedges' correction uses the pooled standard deviation, plus a correction factor. Glass's delta uses the sample standard deviation of the control group

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