Checking assumptions of regression
Mutlicollinearity, Variation Inflation Factor, and Orthogonalization
Centered-score Regression
Using Perl, Bilog, SAS, and DataDesk to Visualize Item Characteristic Curves
Using SAS/Graph to Visualize Distractor Analysis
Using SAS for Item Analysis and Test Construction I
Using SAS for Item Analysis and Test Construction II
Using SAS/IntrNet for evaluating Web-based instruction (Theory)
Using SAS to analyze user access log (Practice)
Filling in Missing Data and Transposing
Joining Two Files
Merging Files with Either Student ID or Social Security Number
Analyze change of pre-test and post-test
Porting SAS Output from UNIX, Mainframe to Desktop
Tips of SAS for Windows
Grading raw responses into binary scores
Using SAS for item analysis and test construction
Writing efficient SAS source codes
Automation of changing item ID
Fill in missing information
Sorting data by multiple columns
SAS Programs for formatting input and output files for Winsteps
JMP TIPS
Using JMP to analyze user access log (Practice)
Biplot for Principle Component Analysis
Diamond Plot for Comparing Group Means and Variability
Leverage Plot for F-test
Other Statistics Resources
A simple guide to the Item Response Theory
Incoherence and the parametric test framework: Misconceived relationships among sample, sampling distributions, and population
Misconceived relationships between logical positivism and quantitative research: An analysis in the framework of Ian Hacking
Probabilistic inferences or dichotomous answers?
Statistical reasoning
Degrees of Freedom
Don't believe in Null Hypothesis?
Mathematical Reality -- Do Theoretical Distributions Exist?
The interaction of research goal, data type, and graphical format in multivariate visualization
Identification of misconceptions in learning central limit theorem and evaluation of computer-based instruction as a remedial tool
Identification of misconceptions concerning statistical power with dynamic graphics as a remedial tool
The visualization of multi-way interactions and high-order terms in multiple regression
Induction? Deduction? Abduction? Is there a logic of EDA?
Statistical simulations in Xlisp-stat
Color regression (DataDesk)
Using DeltaGraph: Quick and dirty
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