Haves, Halves, and Have-Nots: School Libraries and Student Achievement in California Page: 121
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Partial Correlation, Total Staff Hours, English Language Arts CST Scores, and School and
Community Variables, Grade 11
Parent Education Level .53**
Free and Reduced Lunch .53**
Percentage English Learners .59**
Avg. Teacher Salary .49**
Percentage Fully Credentialed Teachers .54**
The correlation between eleventh grade U.S. History CST scores and total staffing hours
was similarly strong at r = .56, p <.001, and the relationship followed a similar pattern when
controlling for school and community variables in partial correlations, which ranged from r = .52
when controlling for average teacher salary to r = .60 when controlling for percentage of English
learners, both at p <.001. See table 32 for results.
Partial Correlation, Total Staff Hours, U.S. History CST Scores, and School and Community
Variables, Grade 11
Parent Education Level .56**
Free and Reduced Lunch .56**
Percentage English Learners .60**
Avg. Teacher Salary .52**
Percentage Fully Credentialed Teachers .57**
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Achterman, Douglas L. Haves, Halves, and Have-Nots: School Libraries and Student Achievement in California, dissertation, December 2008; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc9800/m1/135/: accessed May 28, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .