Impact of Household Income on Standardized Test Scores
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The influence of socioeconomic factors on standardized test scores has been long debated and studied. This paper examines the relationship between family income and state-mandated achievement test scores for students in the State of Georgia. We first use a simple linear regression model of average test score and average household income to first establish a positively correlated relationship. This relationship is further analyzed by differentiating for other community-based factors (race, household type, and educational attainment level) in three multiple variable regression models. For comparison and to evaluate any consistencies these variables may have, the regressions were run on data from both 2007 and 2014. In both cases, the final multiple regressions found that average household income was not statistically significant in impacting the average test scores of the counties studied, while household type and educational attainment level were statistically significant.