Librarians positively correlate with reading scores with poverty as control variable

In this instance, both endorsed and non-endorsed librarians were positively correlated with advanced CSAP reading scores and negatively correlated with unsatisfactory scores. In other words, with poverty utilized as a control variable, both endorsed and non-endorsed librarians had positive and statistically significant correlations with reading scores. Notably, however, these relationships are stronger for endorsed librarians than non-endorsed ones. What did not change was the lack of relationship between non-endorsed library assistants working without a librarian and reading scores. Apparently, library assistants working without supervision do not have any impact on reading scores, either advanced or unsatisfactory.
http://www.ala.org/research/librariesmatter/node/617
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