View source: R/analysis_Qstatistic.R
calc_cross_site_variation | R Documentation |
Given a set of impact estimates and associated standard errors, use method of moments to calculate the implied cross site variation, assuming the standard errors are correct (and that site-specific impacts are independent of precision).
calc_cross_site_variation(Y, SE)
Y |
List of estimated impacts for sites |
SE |
List of standard errors for the estimated impacts. |
For discussion of this approach, see pg 241 of Handbook of Quantitative Methods for Educational Research, Timothy Teo (Ed.)
Grand mean, Q statistic, and estimated tau (cross site variation).
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