analytical sensitivity

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analytical sensitivity

The concentration at which the mean response is statistically beyond the noise limits of the signal at zero concentration. Analytical sensitivity is the ability of a test to detect a target analyte (e.g., an antibody or antigen), which is usually expressed as the minimum detectable concentration of the analyte. In practice, the way in which analytic sensitivity is calculated varies according to the lab, with differing replicates and matrices.
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We exclude from the analysis schools, mostly in rural areas, with addresses we were unable to map and schools with missing test performance measures for any year during our study period, which spans 1996-97 to 1999-2000.