# Pre-Twin Methodology Workshop [March 2010]

## Topics for 2010 Workshop

Website: OpenMx
Text: Methodology for Genetic Studies of Twins and Families by Neale & Cardon, 1992 revision PDF of Neale & Maes book.
Classic Mx Manual: Mx: Statistical Modeling by Neale, Boker, Xie & Maes, 2006 PDF of Mx manual.

Number Lecture Topic Presentation/Media Notes and Examples
01 Introduction to R Tim York’s R Session 11
R for OpenMx Reference Key
02 Introduction to OpenMx OpenMx SMEP Presentation
OpenMx Intro Presentation
Intro Scripts
OpenMx Reference Key
First OpenMx script
03 Matrix Algebra & Optimization Matrix Algebra
MatrixAlgebraExercises
Matrix Algebra Exercises
04 Means & Variance Modeling Means & Variance Modeling Univariate Saturated
Bivariate Saturated
05 Saturated Twin Modeling Saturated Twin Analysis Univariate Twin Saturated -Matrix
06 Univariate Twin Modeling Univariate Twin Analysis Univariate Twin Continuous -Matrix
Univariate Twin Continuous -Path
Univariate Twin Binary -Matrix
Univariate Twin Ordinal -Matrix
Univariate Twin Ordinal -Matrix _mean/variance, in progress
07 Heterogeneity Twin Modeling Heterogeneity Twin Analysis
ACE 5 group graph
Heterogeneity Twin Continuous -Matrix
Heterogeneity Twin Continuous QnQl -Matrix
08 Moderated Twin Modeling Moderated Twin Analysis Moderated Twin Continuous -Matrix
Tim’ York’s Moderation Script
09 Bivariate Twin Modeling Bivariate Twin Analysis Bivariate Twin Continuous -Matrix
usski.rec dataset
10 Multivariate Twin Modeling Multivariate Twin Analysis
IP graph
CP graph
Multivariate Twin Continuous -Matrix
nliq.rec dataset
11 Longitudinal Twin Modeling Longitudinal Twin Continuous -Matrix
jepq.dat dataset
Longitudinal Twin Ordinal -Matrix
jepq_ord.txt dataset
12 Comorbidity Comorbidity Twin Analysis Alternate Forms
Direction of Causation
Bivariate Binary
Random Multiformity
Three Disorders
13 Helper Functions Genetic Epidemiology Helper Functions
All Scripts
Gen Epi Helper Functions