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Practical Assessment
Research & Evaluation
A peer-reviewed electronic journal. ISSN 1531-7714 
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Statistical Analysis
 
green dot  2019 Heteroskedasticity in Multiple Regression Analysis: What it is, How to Detect it and How to Solve it with Applications in R and SPSS  Astivia, Oscar L. Olvera and Zumbo, Bruno D.
Viewed 606 times since 1/11/2019.
green dot  2018 The Ensemble and Model Comparison Approaches for Big Data Analytics in Social Sciences.   Yu, C H., Lee, H S., Lara, E., & Gan, S.
Viewed 310 times since 11/21/2018.
green dot  2018 Overview of Data Mining`s Potential Benefits and Limitations in Education Research  Iwatani, Emi
Viewed 512 times since 10/14/2018.
green dot  2018 A Note on Using the Nonparametric Levene Test When Population Means Are Unequal.   Shear, Benjamin R., Nordstokke, David W., & Zumbo, Bruno D.
Viewed 372 times since 9/17/2018.
green dot  2018 Contrast Analysis: A Tutorial  Antal Haans
Viewed 2,056 times since 5/29/2018.
green dot  2018 A Note on the Assumption of Identical Distributions for Nonparametric Tests of Location.  Nordstokke, David W. & Colp, S. Mitchell
Viewed 718 times since 4/5/2018.
green dot  2018 Using Instrumental Variable Estimation to Evaluate Randomized Experiments with Imperfect Compliance  Francis L. Huang
Viewed 1,590 times since 2/24/2018.
green dot  2018 Random Forest as a Predictive Analytics Alternative to Regression in Institutional Research  Lingjun He, Richard A. Levine, Juanjuan Fan, Joshua Beemer, and Jeanne Stronach
Viewed 2,176 times since 1/13/2018.
green dot  2017 An Evaluation of Normal Versus Lognormal Distribution in Data Description and Empirical Analysis.  Diwakar, Rekha
Viewed 2,426 times since 12/21/2017.
green dot  2017 The Miscalculation of Interrater Reliability: A Case Study Involving the AAC&U VALUE Rubrics  Szafran, Robert
Viewed 1,032 times since 12/8/2017.
green dot  2017 Advocating the Broad Use of the Decision Tree Method in Education.  Gomes, Cristiano M. A., and Almeida, Leandro S
Viewed 1,468 times since 11/6/2017.
green dot  2017 Data Transformations for Inference with Linear Regression: Clarifications and Recommendations.   Pek, J., Wong, O., & Wong, AC.
Viewed 2,524 times since 10/11/2017.
green dot  2017 Estimating Operational Validity Under Incidental Range Restriction: Some Important but Neglected Issues.   Brown, Reagan D., Oswald, Frederick L. & Converse, Patrick D.
Viewed 1,395 times since 8/6/2017.
green dot  2017 Hierarchical Linear Modeling with Maximum Likelihood, Restricted Maximum Likelihood, and Fully Bayesian Estimation  Boedeker, Peter
Viewed 3,398 times since 4/12/2017.
green dot  2016 Partial Least Squares Structural Equation Modeling with R  Ravand, Hamdollah, & Baghaei, Purya
Viewed 4,831 times since 9/16/2016.
green dot  2016 Accuracy of range restriction correction with multiple imputation in small and moderate samples: A simulation study  Pfaffel, Andreas, & Spiel, Christiane
Viewed 2,123 times since 9/13/2016.
green dot  2016 Measurement Error and Equating Error in Power Analysis  Phillips, Gary W., and Jiang, Tao
Viewed 2,735 times since 8/8/2016.
green dot  2016 Regularization Methods for Fitting Linear Models with Small Sample Sizes: Fitting the Lasso Estimator using R.   Finch, W. Holmes, & Finch, Maria E. Hernandez
Viewed 3,553 times since 5/8/2016.
green dot  2016 A Comparison of Three Approaches to Correct for Direct and Indirect Range Restrictions: A Simulation Study.   Pfaffel, Andreas, Schober, Barbara, & Spiel, Christiane.
Viewed 3,132 times since 3/24/2016.
green dot  2016 Confidence Intervals for Effect Sizes: Applying Bootstrap Resampling.  Banjanovic, Erin S., and Osborne, Jason W.
Viewed 6,742 times since 3/11/2016.
green dot  2016 A Brief Guide to Decisions at Each Step of the Propensity Score Matching Process.   Harris, Heather, & Horst, S. Jeanne
Viewed 4,374 times since 2/19/2016.
green dot  2016 Tutorial on Using Regression Models with Count Outcomes using R  Beaujean, A. Alexander & Grant, Morgan B.
Viewed 12,646 times since 2/2/2016.
green dot  2016 Data visualization of item-total correlation by median smoothing  Yu, Chong Ho, Douglas, Samantha, Lee, Anna, & An, Min
Viewed 3,319 times since 2/1/2016.
green dot  2015 A Practical Guide for Using Propensity Score Weighting in R.   Olmos, Antonio & Priyalatha Govindasamy
Viewed 15,883 times since 6/27/2015.
green dot  2015 Chi-Square Test is Statistically Significant: Now What?  Sharpe, Donald
Viewed 64,310 times since 4/6/2015.
green dot  2015 What is Rotating in Exploratory Factor Analysis?   Osborne, Jason W.
Viewed 34,710 times since 1/7/2015.
green dot  2015 Linear Logistic Test Modeling with R  Baghaei, Purya & Kubinger, Klaus D
Viewed 6,265 times since 1/1/2014.
green dot  2014 A Step-by-Step Guide to Propensity Score Matching in R  Randolph, Justus J., Falbe, Kristina, Manuel, Austin Kureethara, & Balloun, Joseph L.
Viewed 36,064 times since 11/19/2014.
green dot  2014 A Primer on Multivariate Analysis of Variance (MANOVA) for Behavioral Scientists.   Warne, Russell
Viewed 22,556 times since 11/18/2014.
green dot  2014 Analyzing Group Level Effects with Clustered Data Using Taylor Series Linearization.  Huang, Francis L.
Viewed 4,336 times since 11/11/2014.
green dot  2014 Sample Size Determination for Regression Models Using Monte Carlo Methods in R.   Beaujean, A. Alexander
Viewed 20,399 times since 8/23/2014.
green dot  2014 Impact of Sample Size and Variability on the Power and Type I Error Rates of Equivalence Tests: A Simulation Study.   Rusticus, Shayna A. & Lovato, Chris Y.
Viewed 17,223 times since 8/16/2014.
green dot  2014 A Simulation Study of Missing Data with Multiple Missing X’s  Rubright, Jonathan D., Nandakumar, Ratna and Gluttin, Joseph J.
Viewed 6,476 times since 8/12/2014.
green dot  2014 Estimating unbiased treatment effects in education using a regression discontinuity design.  Smith, William C.
Viewed 6,500 times since 8/3/2014.
green dot  2014 Improving Your Exploratory Factor Analysis for Ordinal Data: A Demonstration Using FACTOR.   Baglin, James
Viewed 20,099 times since 6/14/2014.
green dot  2014 Exploring the Limitations of Measures of Students` Socioeconomic Status (SES)  Dickinson, Emily R. & Jill L. Adelson
Viewed 7,703 times since 5/15/2014.
green dot  2013 Educational Research with Real-World Data: Reducing Selection Bias with Propensity Score Analysis.  Adelson, Jill L.
Viewed 5,325 times since 12/18/2013.
green dot  2013 Comparing Propensity Score Methods in Balancing Covariates and Recovering Impact in Small Sample Educational Program Evaluations.  Stone, Clement A. & Tang, Yun
Viewed 10,979 times since 11/5/2013.
green dot  2013 Normality of residuals is a continuous variable, and does seem to influence the trustworthiness of confidence intervals : A response to, and appreciation of, Williams, Grajales, and Kurkiewicz (2013)  Osborne, Jason W.
Viewed 5,681 times since 9/6/2013.
green dot  2013 Assumptions of Multiple Regression: Correcting Two Misconceptions.  Williams, Matt N., Grajales, Carlos Alberto Gómez, & Kurkiewicz, Dason
Viewed 31,031 times since 9/6/2013.
green dot  2013 Using the Student's t-test with extremely small sample sizes  de Winter, J.C.F.
Viewed 112,681 times since 8/6/2013.
green dot  2013 Determining the Number of Factors to Retain in EFA: Using the SPSS R-Menu v2.0 to Make More Judicious Estimations  Courtney, Matthew Gordon Ray
Viewed 23,006 times since 4/30/2013.
green dot  2013 Forest plots in Excel: Moving beyond a clump of trees to a forest of visual information.   Derzon, James H. & Alford, Aaron A.
Viewed 30,702 times since 4/29/2013.
green dot  2013 Practical Considerations for Using Exploratory Factor Analysis in Educational Research.   Beavers, Amy S., Lounsbury, John W., Richards, Jennifer K., Huck, Schuyler W., Skolits, Gary J. & Esquivel, Shelley L.
Viewed 26,493 times since 3/5/2013.
green dot  2013 Factor Analysis using R.   Beaujean, A. Alexander
Viewed 32,625 times since 2/25/2013.
green dot  2013 Unit-weighted scales imply models that should be tested!   Beauducel, André & Leue, Anja
Viewed 5,369 times since 2/18/2013.
green dot  2012 Replication Analysis in Exploratory Factor Analysis: What it is and why it makes your analysis better.  Osborne, Jason W. & David C. Fitzpatrick
Viewed 11,740 times since 11/1/2012.
green dot  2012 Logits and tigers and bears, oh my! A brief look at the simple math of logistic regression and how it can improve dissemination of results.   Osborne, Jason W.
Viewed 7,374 times since 6/6/2012.
green dot  2012 Interpreting Multiple Linear Regression: A Guidebook of Variable Importance  Nathans, Laura L., Oswald, Frederick L., & Nimon, Kim
Viewed 99,401 times since 4/29/2012.
green dot  2012 A Demonstration of a Systematic Item-Reduction Approach Using Structural Equation Modeling.   Larwin, Karen & Harvey, Milton
Viewed 9,621 times since 4/23/2012.
green dot  2012 Transforming Rubrics Using Factor Analysis  Baryla, Ed, Shelley, Gary and William Trainor
Viewed 7,952 times since 1/23/2012.
green dot  2012 Estimating ordinal reliability for Likert-type and ordinal item response data: A conceptual, empirical, and practical guide  Gadermann, Anne M., Guhn, Martin & Bruno D. Zumbo
Viewed 30,326 times since 1/17/2012.
green dot  2011 Reporting and Discussing Effect Size: Still the Road Less Traveled?  McMillan, James H. & Jennifer Foley
Viewed 15,906 times since 10/18/2011.
green dot  2011 Cohen's d vs. Alternative Standardized Mean Group Difference Measures  Cahan, Sorel & Eyal Gamliel
Viewed 11,960 times since 6/28/2011.
green dot  2011 Applying Tests of Equivalence for Multiple Group Comparisons: Demonstration of the Confidence Interval Approach.  Rusticus, Shayna A. & Chris Y. Lovato
Viewed 11,512 times since 4/25/2011.
green dot  2011 The operating characteristics of the nonparametric Levene test for equal variances with assessment and evaluation data.  Nordstokke, David W., Zumbo, Bruno D., Cairns, Sharon L., Saklofske, Donald H.
Viewed 13,816 times since 2/26/2011.
green dot  2010 Yule-Simpson's Paradox in Research  Goltz, Heather Honoré & Matthew Lee Smith
Viewed 10,205 times since 10/18/2010.
green dot  2010 Improving your data transformations: Applying the Box-Cox transformation  Osborne, Jason
Viewed 55,534 times since 10/6/2010.
green dot  2012 Five-Point Likert Items: t test versus Mann-Whitney-Wilcoxon (Addendum added October 2012)  de Winter, J. C. F. & D. Dodou
Viewed 54,164 times since 10/6/2010.
green dot  2010 Analyzing the longitudinal K-12 grading histories of entire cohorts of students: Grades, data driven decision making, dropping out and hierarchical cluster analysis.  Bowers, Alex J.
Viewed 7,455 times since 5/12/2010.
green dot  2009 Combining Dual Scaling with Semi-Structured Interviews to Interpret Rating Differences  Childs, Ruth A., Ram, Anita & Xu, Yunmei
Viewed 8,853 times since 5/26/2009.
green dot  2009 Using Power Tables to Compute Statistical Power in Multilevel Experimental Designs  Konstantopoulos, Spyros
Viewed 16,960 times since 5/20/2009.
green dot  2009 Using recursive regression to explore nonlinear relationships and interactions: A tutorial applied to a multicultural education study  Strang, Kenneth David
Viewed 16,667 times since 3/16/2009.
green dot  2008 Revisiting the Collinear Data Problem: An Assessment of Estimator 'Ill-Conditioning' in Linear Regression   Callaghan, Karen J. and Chen, Jie
Viewed 16,124 times since 6/18/2008.
green dot  2008 What Does it Mean to Be Average? The Miles per Gallon versus Gallons per Mile Paradox Revisited  Haans, Antal
Viewed 17,625 times since 4/8/2008.
green dot  2008 Conducting External Profile Analysis with Multiple Regression  Culpepper, Steven Andrew
Viewed 15,132 times since 1/9/2008.
green dot  2007 A data visualization and data mining approach to response and non-response analysis in survey research  Yu,Chong Ho,  Jannasch-Pennell, Angel,  DiGangi,Samuel,  Kim,Chang & Andrews, Sandra
Viewed 16,391 times since 12/20/2007.
green dot  2007 On the Performance of the lZ Person-Fit Statistic  Armstrong, Ronald D., Stoumbos, Zachary G., Kung, Mabel T., & Shi, Min
Viewed 39,969 times since 12/5/2007.
green dot  2007 Randomized Field Trials and Internal Validity: Not So Fast My Friend.  McMillan, James H.
Viewed 18,764 times since 12/3/2007.
green dot  2007 Assessing unidimensionality: A comparison of Rasch Modeling, Parallel Analysis, and TETRAD  Yu, Chong Ho, Sharon Osborn Popp, Samuel DiGangi, and Angel Jannasch-Pennell
Viewed 18,465 times since 10/8/2007.
green dot  2007 Assessing Program Outcomes When Participation Is Voluntary: Getting More Out of a Static-Group Comparison.   Szafran, Robert F.
Viewed 14,468 times since 5/29/2007.
green dot  2007 An Introduction To Multi-Battery Factor Analysis: Overcoming Method Artefacts.  Brown, Gavin T L
Viewed 16,278 times since 5/29/2007.
green dot  2007 Decoding the Meaning of Factorial Invariance and Updating the Practice of Multi-group Confirmatory Factor Analysis: A Demonstration With TIMSS Data  Wu, Amery D., Li, Zhen and Bruno D. Zumbo
Viewed 21,659 times since 2/11/2007.
green dot  2007 Determining the Number of Factors to Retain in EFA: An easy-to-use computer program for carrying out Parallel Analysis  Ledesma, Rubén Daniel and Pedro Valero-Mora
Viewed 33,434 times since 2/1/2007.
green dot  2006 Using Regression Mixture Analysis in Educational Research  Ding, Cody S.
Viewed 38,624 times since 11/28/2006.
green dot  2006 Consider Propensity Scores to Compare Treatments  Rudner, Lawrence M. & Johnette Peyton
Viewed 17,363 times since 11/17/2006.
green dot  2006 Expected Classification Accuracy using the Latent Distribution  Guo, Fanmin
Viewed 12,526 times since 10/17/2006.
green dot  2005 Expected Classification Accuracy  Rudner, Lawrence M.
Viewed 18,904 times since 8/29/2005.
green dot  2001 Computing the expected proportions of misclassified examinees  Rudner, Lawrence M.
Viewed 25,247 times since 3/30/2001.
green dot  1996 Kerlinger's Research Myths.  Daniel, Larry G.
Viewed 71,205 times since 11/13/1999.
green dot  1995 More Multiple-Choice Item Writing Do's and Don'ts.  Frary, Robert B.
Viewed 85,108 times since 11/13/1999.
green dot  1995 Writing Multiple-Choice Test Items.  Kehoe, Jerard
Viewed 149,169 times since 11/13/1999.
green dot  1994 The Concept of Statistical Significance Testing.  Thompson, Bruce
Viewed 152,359 times since 11/13/1999.