Problem Set 1: The independent-samples t test Research Scenario: A learning psychologist is interested in comparing the success of two different mnemonics (memorization methods) on performance in a memory task. He assigns students to two groups, one which learns and uses a language-based rhyming memory technique, and one which learns and uses a visual “method of loci” spatial memory technique. He then administers a memory task to each group of students. The students are scored based on the percentage of correct answers. Using this table, enter the data into a new SPSS data file and run an independent-samples t test to test the claim that there is a difference in the percentage of correct answers between the two groups. Follow the directions below the table to complete the homework. Language-Based Spatially-based 93 77 89 87 78 62 67 90 95 83 89 72 95 76 63 99 84 93 Group Statistics Groups N Mean Std. Deviation Std. Error Mean Scores Language_Based 9 82.0000 11.69402 3.89801 Spatially_Based 9 83.7778 11.73433 3.91144 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower Upper Scores Equal variances assumed .051 .825 -.322 16 .752 -1.77778 5.52212 -13.48415 9.92860 Equal variances not assumed -.322 16.000 .752 -1.77778 5.52212 -13.48416 9.92861 Write an APA-style Results section based on your analysis. Include your boxplot as an APA-style figure as demonstrated in the APA writing presentation. (Results = 8 pts; Graph = 5 pts) (Just need this one answered please. Its urgent!)
We have conducted independent t-test to compare the means we see that test statistic is -0. 322 and p-value is 0. 752 since p-value is less than significance level we fail to reject the null hypothesis we conclude that there is not sufficient evidence to support the claim that there is a difference in the percentage of correct answers between the two groups.