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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).
Project
Description: The National Project on Achievement in Twins (NatPAT) is funded by the National Institutes of Health (grant number HD052120).
Project
Description: Abstract
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: National Project on Achievement in Twins
Description: This is the survey that was sent to NatPAT caregivers in mid-summer 2021, focused on COVID-19 pandemic impacts on their family.
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: National Project on Achievement in Twins
Description: This document contains the codebook and all necessary information for the NatPAT COVID-19 Summer to Fall 2021 Survey that was adminsitered.
Document Type: Codebook
Document
Part of Project: National Project on Achievement in Twins
Description: This is the survey that was sent to NatPAT caregivers in mid-summer 2021, focused on COVID-19 pandemic impacts on their family.
Document Type: Assessment Materials
