Gretchen is comparing second grade students' spelling ability across three existing groups. One group has had phonemic instruction, one group has used invented spelling, and the final group has had weekly spelling activities with high frequency words. Gretchen will likely use which of the following data analysis techniques to examine differences between these groups on a spelling test?
A) Chi Square
B) T test
C) Pearson r
D) ANOVA

Question

Quizplus · Accepted Answer

ANOVA (Analysis of Variance) is the best choice in this case as it allows for the comparison of three or more groups on a continuous outcome variable (such as spelling scores). It can identify if there are statistically significant differences between the means of the groups and which groups are significantly different from each other. Chi Square, T test, and Pearson r are not appropriate for this type of analysis.

Gretchen Is Comparing Second Grade Students' Spelling Ability Across Three