Haves, Halves, and Have-Nots: School Libraries and Student Achievement in California Page: 34
library media center is "often the only source to which these students can turn for a rich and
varied learning experience" (p. 20).
In statewide studies, there is considerable evidence that the size of the collection may be
related to student achievement. The Florida (Baumbach, 2003), Iowa (Rodney et al., 2002), and
New Mexico (Lance et al., 2002) studies indicate a positive significant correlation at the
elementary level; Wisconsin (Smith, 2006) study shows a significant correlation at both
elementary and middle school levels, and the Michigan (Rodney et al., 2003) study shows a
significant positive correlation at all three levels. The strongest correlations were found in the
fourth grade in Michigan, weakening through the middle school and high school. A similar
pattern of strongest correlation in the elementary school to weakest in the high school can be
seen in the New Mexico (Lance et al, 2002) study. See Table 4.
State Test Scores and Total Print Collection.: Bivariate Correlations
State Grade State Test r p
Florida (Baumbach, 2003) 3 Reading .098* <.05
Iowa (Rodney et al., 2002) 4 Reading .154* .049
Michigan (Rodney et al., 2003) 4 Reading .491* <.05
New Mexico (Lance et al., 2002) 4 Language Arts .332** <.001
Wisconsin (Smith, 2006) 4 Language Arts .126** .007
Michigan (Rodney et al., 2003) 7 Reading .321** <.01
Table 4 (continued)
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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/m1/48/ocr/: accessed February 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .