Longitudinal Data Analysis Using Discrete and Continuous Responses

  • Tuition USD $2,400
  • Reviews star_rate star_rate star_rate star_rate star_half 839 Ratings
  • Course Code LONG42
  • Duration 3 days
  • Available Formats Classroom, Virtual

This course is for scientists and analysts who want to analyze observational data collected over time. It is not for SAS users who have collected data in a complicated experimental design. They should take the Mixed Models Analyses Using SAS® course instead.

Skills Gained

  • create individual and group profile plots and sample variograms
  • use PROC MIXED to fit a general linear mixed model and a random coefficient model
  • plot information criteria for models with selected covariance structures
  • generate diagnostic plots in PROC MIXED
  • fit a binary generalized linear mixed model in PROC GLIMMIX
  • fit an ordinal generalized linear mixed model and a model with spline effects in PROC GLIMMIX
  • fit a binary GEE model in PROC GENMOD.

Who Can Benefit

  • Epidemiologists, social scientists, physical scientists, and business analysts


  • Before attending this course, you should be able to
  • execute SAS programs and create SAS data sets
  • fit models using the GLM and REG procedures in SAS/STAT software.

Course Details

Longitudinal Data Analysis Concepts

  • understanding the merits and analytical problems associated with longitudinal data analysis

Exploratory Data Analysis

  • graphing individual and group profiles
  • identifying cross-sectional and longitudinal patterns

General Linear Mixed Model

  • understanding the concepts behind the linear mixed model
  • examining the different covariance structures available in PROC MIXED
  • fitting a general linear mixed model in PROC MIXED

Evaluating Covariance Structures

  • creating a sample variogram that illustrates the error components in your model
  • plotting information criteria for models with selected covariance structures

Model Development, Interpretation, and Assessment

  • learning the model building strategies in PROC MIXED
  • creating interaction plots
  • specifying heterogeneity in the covariance structure
  • computing predictions using EBLUPs
  • fitting a random coefficient model in PROC MIXED
  • generating diagnostic plots in PROC MIXED using ODS Graphics

Generalized Linear Mixed Models

  • fitting a binary Generalized Linear Mixed Model in PROC GLIMMIX

Applications Using PROC GLIMMIX

  • fitting an ordinal generalized linear mixed model in PROC GLIMMIX
  • fitting a generalized linear mixed model with splines in PROC GLIMMIX

GEE Regression Models

  • fit a binary GEE model in PROC GENMOD

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What if I have training credits?

ExitCertified honors all savings programs from the partners we work with. ExitCertified also offers training credits across multiple partners through our FLEX Account.

When does class start/end?

Classes begin promptly at 9:00 am, and typically end at 5:00 pm.

Does the course schedule include a Lunchbreak?

Lunch is normally an hour long and begins at noon. Coffee, tea, hot chocolate and juice are available all day in the kitchen. Fruit, muffins and bagels are served each morning. There are numerous restaurants near each of our centers, and some popular ones are indicated on the Area Map in the Student Welcome Handbooks - these can be picked up in the lobby or requested from one of our ExitCertified staff.

How can someone reach me during class?

If someone should need to contact you while you are in class, please have them call the center telephone number and leave a message with the receptionist.

What languages are used to deliver training?

Most courses are conducted in English, unless otherwise specified. Some courses will have the word "FRENCH" marked in red beside the scheduled date(s) indicating the language of instruction.

What does GTR stand for?

GTR stands for Guaranteed to Run; if you see a course with this status, it means this event is confirmed to run. View our GTR page to see our full list of Guaranteed to Run courses.

Great first experience with ExitCertified. I look forward to many more trainings.

Bill has been outstanding instructor. He has right balance of knowledge and skills to navigate this entire process in a timely manner. Thanks a lot Bill.

Well organized course, supporting materials, and instructor. Good intro to AWS for various levels of participants - managers to developers.

The material was excellent, well laid out and the instructor was highly knowledgeable in material and able to present it easily.

The presenter was knowledgeable and professional. The duration of the course, the pace and venue was suitable also

2 options available

  • Apr 7, 2021 Apr 16, 2021 (10 days)
    1:00 PM 4:30 PM EST
  • Sep 15, 2021 Sep 24, 2021 (10 days)
    1:00 PM 4:30 PM EST
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