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The belief that police officers automatically make schools safer was challenged in a 2011 study that compared federal crime data of schools that had police officers with schools that did not.
The study was based on the cross-sectional baseline data of schools and students participating in a Norwegian nationwide project called 'Physical activity and healthy meals in school' aimed at developing feasible school models for integrating 60-min daily physical activity into school hours.
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The National Education Association data of school revenue sources for public K-12 schools show that local and state sources comprise the majority of school funding.
For example, "at the school level, the data of school students studying STEM subjects is misrepresented," co-author Deborah Corrigan tells Science Careers by e-mail.
Seventeen data of school children were incomplete and therefore excluded, leaving 405 (96%) for analysis.
Inspectors also described the council's collection and use of data on schools' performance as "not fit for purpose".
An additional source of data on school processes comes from TALIS.
We assembled a list of the top 15, based on a 2006 survey (the most recent data) of 189 schools by the Association of University Technology Managers, which tracks university-born patents and licensing revenues.
Therefore, baseline data of 22 schools with 91 classes and 1759 students were collected (see figure 1).
Further data of more schools should be accumulated to clarify any such possible clustering effect in a future study.
For binary data, means of school level proportions, for quantitative data means of school level means will be compared using two-sample t-tests.
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