File: SATcoaching.Rd

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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data-documentation.R
\docType{data}
\name{SATcoaching}
\alias{SATcoaching}
\title{Randomized experiments on SAT coaching}
\format{
A data frame with 67 rows and 11 variables: 
\describe{ 
  \item{study}{Study identifier}
  \item{year}{Year of publication} 
  \item{test}{Character string indicating whether effect size corresponds to outcome on verbal (SATV) or math (SATM) test}
  \item{d}{Effect size estimate (Standardized mean difference)} 
  \item{V}{Variance of effect size estimate} 
  \item{nT}{Sample size in treatment condition} 
  \item{nC}{Sample size in control condition} 
  \item{study_type}{Character string indicating whether study design used a matched, non-equivalent, or randomized control group} 
  \item{hrs}{Hours of coaching} 
  \item{ETS}{Indicator variable for Educational Testing Service} 
  \item{homework}{Indicator variable for homework} 
  }
}
\usage{
SATcoaching
}
\description{
Effect sizes from studies on the effects of SAT coaching,
reported in Kalaian and Raudenbush (1996)
}
\references{
Kalaian, H. A. & Raudenbush, S. W. (1996). A multivariate mixed 
  linear model for meta-analysis. \emph{Psychological Methods, 1}(3),
  227-235. 
  \doi{10.1037/1082-989X.1.3.227}
}
\keyword{datasets}