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Project
Description: Mathematical thinking is in high demand in the global market, but approximately six percent of school-age children across the globe experience math difficulties (Shalev, et al., 2000).
Dataset
Part of Project: The Home Math Environment and Children's Math Achievment: A Meta-Analysis
Description: The data are in long form, with some studies having multiple lines and includes a sample of children ranging from 3.54 to 13.75 years old. The main effect size is the r, correlation coefficient, and the accompanying sample size is also included.
Dataset
Part of Project: A Meta-Analysis of the Bilingual Advantage in Executive Function among Children
Description: This data set corresponds to 172 studies examining the bilingual advantage.
Code
Home Math Environment and Children's Math Achievement Meta-Analysis R code using the Metafor package
Part of Project: The Home Math Environment and Children's Math Achievment: A Meta-Analysis
Description: This code was written in R version 3.5.3 using the metafor package (Viechtbauer, 2010). First the dataset is called in, then the variables are converted to the correct formats for analysis, then the escalc() function is used to calculate an overall Fisher's Z effect size, which is then converted to an R correlation coefficient.
Code Type: Analysis
Document
Part of Project: Western Reserve Reading and Math Project
Description: This contains a master codebook comprising of codebooks throughout the various waves of the entirety of the project. This additionally contains information on how to generally use twin data.
Document Type: Codebook
Document
Part of Project: Western Reserve Reading and Math Project
Description: This spreadsheet is meant to serve as a supplement to the master codebook, containing information on which measures were collected during each wave.
Document Type: Codebook
