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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: Abstract
Project
Description: This project was funded by the NIH through the P50 Florida Learning Disabilities Research Center. More information about the project can be read in this publication about the project:
Taylor, J., Martinez, K., & Hart, S.A. (2019). The Florida State Twin Registry. Twin Research and Human Genetics, 22(6), 728-730.
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: Florida Twin Project on Reading, Behavior, and Environment
Description: Race and ethnicity variables can be particularly problematic for data reidentification and data misuse in publicly available datasets, and as such were removed from the original datasets. This dataset contains race and ethnicity information for all waves of data that may be available upon request.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains information from the Florida Progress Monitoring and Reporting Network (PMRN) linked to the Florida Twin Project twins.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the initial survey assessment completed by parents and twins (who were 9 years or older) regarding the twin pair's environments and behaviors (2010). T
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains measures from the third wave of data collection of the twins' achievement (collected in 2016). Data was collected via parent assessment using instructions sent in the mail.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains measures from the second wave of data collection of the twins' achievement (collected in 2014). Data was collected via parent assessment using instructions sent in the mail.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains measures from the first wave of data collection of the twins' achievement (collected in 2012). Data was collected via parent assessment using instructions sent in the mail.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the first wave of surveys sent to parents of twin pairs in 2012.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the second wave of surveys sent to parents of twin pairs in 2014.
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the wave 3 survey completed by the twins who were 9 and older about themselves, administered in 2016. This contains measures related to the child's home and school environment, attitudes regarding books, home, school, and friends, and several behavioral surveys (PANAS, CADS, etc.).
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the wave 2 survey completed by the twins who were 9 and older about themselves, administered in 2014. This contains measures related to the child's home and school environment, attitudes regarding books, home, school, and friends, and several behavioral surveys (PANAS, CADS, etc.).
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the wave 2 survey completed by the twins who were 9 and older about themselves, administered in 2012. This contains measures related to the child's home and school environment, attitudes regarding books, home, school, and friends, and several behavioral surveys (PANAS, CADS, etc.).
Dataset
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This dataset contains results from the third wave of surveys sent to parents of twin pairs in 2016.
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: Florida Twin Project on Reading, Behavior, and Environment
Description: This codebook contains information on the variables within the Wave 1 Achievement Measures dataset. Original coding is provided, with alterations to coding for deidentification purposes annotated within the document.
Document Type: Codebook
Document
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This codebook contains information related to the variables within the "Twin Progress Monitoring and Reporting Network Data" dataset. Information within reflects original coding as well as changes to variables that were made for data deidentification and data sharing purposes for all variables and years assessed.
Document Type: Codebook
Document
Part of Project: Florida Twin Project on Reading, Behavior, and Environment
Description: This codebook contains information on variables within the Behavior and Environment Survey dataset. This codebook corresponds to both the parent and twin self-report survey data.
Document Type: Codebook
