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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 Colorado Learning Disabilities Research Center (CLDRC; P50 HD27802) is a long-standing interdisciplinary, multisite research program that is supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development.
Project
Description: Adolescence is a critical period for personality development, and shyness may be a personality trait associated with low self-esteem. Excessive shyness can have negative impacts on various aspects of adolescent's life and learning, and can be a barrier to daily social participation.
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: Colorado Twin Project
Description: This is the Colorado Twin Dataset in Long Format
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: Colorado Twin Project
Description: This is the codebook for the Colorado Twin Project
Document Type: Codebook
