Eunice is a new elementary school principal.One of her first projects is to determine whether students have been appropriately assigned to either the Sparrow,Blue Jay,or Robin reading groups.She administers the Miller Reading Ability Test (MRAT)to all three groups.What statistical analysis should Eunice use to compare the means of the three groups?
A) analysis of variance
B) correlational analysis
C) standard deviation
D) t test

Question

Quizplus · Accepted Answer

Analysis of variance (ANOVA) is used to compare means among three or more groups. In this case, Eunice wants to compare the means of the Sparrow, Blue Jay, and Robin reading groups. ANOVA will allow her to determine if there are significant differences between the groups' reading abilities. Correlational analysis and standard deviation are not appropriate for comparing means among groups, while t-tests would only be useful for comparing two groups.

Eunice Is a New Elementary School Principal