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14440CAUSEweb.orgen-useditor@causeweb.orgwebmaster@causeweb.orgWed, 23 Apr 2014 12:00:00 -0400Sat, 29 Jun 2013 12:00:00 -0400http://www.rssboard.org/rss-2-0-1Analysis Lab
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=50
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=50Some basic statistical analysis tools that allow the user to input their own data or use the pre-existing data and perform the desired test (e.g ANOVA, Descriptive, t-test, chi-square, correlation and regression).Wed, 30 Dec 2009 01:02:27 -0500Two-Way Analysis of Variance
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1514
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1514This tutorial explains the theory and use of two-way ANOVA and demonstrates it with an example on final exam scores. Data is given as well as SPSS and Minitab code.Tue, 29 Aug 2006 06:06:17 -0400One-Way Analysis of Variance (ANOVA)
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1517
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1517This tutorial explains the theory and use of One-Way ANOVA and demonstrates it with an example on final exam scores. Data is given as well as SPSS and Minitab code.Tue, 29 Aug 2006 06:06:17 -0400One- and Two-Way Analysis of Variance Applet
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1463
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1463This applet allows users to input their own data and perform one- and two-way Analyses of Variance. Key Word: ANOVA.Tue, 1 Aug 2006 02:34:40 -0400Pairwise Comparisons in SAS and SPSS
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1277
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1277This site provides information for SAS or SPSS software users, who would like to use multiple comparison methods available in either software package to carry out pairwise comparisons. The site provides a short description of available methods and a recommendation based on the comparisons of the procedures. Some of the methods, namely step-down Holm-Bonferroni and Holm-Sidak, are not directly available in SAS or SPSS, but can be easily implemented using results of appropriate SAS or SPSS procedures.Several pairwise comparison tests include: LSD, Bonferroni, Sidak, Scheffe, REGWQ (Ryan-Einot-Gabriel-Welch based on range), Tukey, Tukey-Kramer, Gabriel, Hochberg’s GF2, SNK (Student-Newman-Keuls), Duncan, Waller-Duncan and Dunnett.Mon, 5 Jun 2006 11:47:11 -0400SPSS tutorial for Multiple Comparisons
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1177
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1177This tutorial exposes students to conducting multiple comparisons in SPSS. This html based tutorial provides extensive screen shots and an example data set. Topics covered in the tutorial include one way ANOVA, preplanned contrasts, Bonferroni, Post Hoc Tukey's HSD, and Scheffe's multiple contrasts.Sun, 12 Mar 2006 07:14:44 -0500An Oral Contraceptive Drug Interaction Study
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1082
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1082This article describes data from a drug interaction study of a new drug and a standard oral contraceptive therapy. Both normal theory and distribution-free statistical analyses are provided along with a notable amount of graphical insight into the dataset. Tue, 26 Jul 2005 02:59:15 -0400Move Over, Roger Maris: Breaking Baseball's Most Famous Record
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1075
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1075The dataset presented in this article referes to game-by-game information for Mark McGwire and Sammy Sosa during summer of 1998. This data can be used to demonstrate graphical displays, categorical data analysis, analysis of variance, logistic regression, and smoothing methods for Poisson and binomial data.Tue, 26 Jul 2005 02:01:06 -0400An Experiential Approach to Integrating ANOVA Concepts
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1068
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1068This article presents a dataset based on an industrial case study using design of experiments. It can be used to discuss sample size, power, statistical significance, interaction terms, Type I and Type II errors, the role and importance of the error term, design of experiments, and analysis of variance. Tue, 26 Jul 2005 01:15:03 -0400Modeling the Reliability of Ball Bearings
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1059
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1059The data presented in this article refer to the reliability of ball bearings in manufacturing. Rather than exploring the data to obtain a multiple linear regression solution, a theoretically derived equation is given and the data is used to test it. Key Words: Failure times; Percentiles; Weighted least squares.Tue, 26 Jul 2005 12:09:04 -04001993 New Car Data
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1057
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=1057This dataset describes 93 new cars for the 1993 model year with 26 variables, including price, mpg ratings, and engine size; it also illustrates a broad range of statistical techniques such as box-whisker plot, confidence intervals, difference in means, one-way ANOVA, contingency table, scatterplot, regression, and correlation. Tue, 26 Jul 2005 11:55:07 -0400ANOVA for Regression
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=410
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=410This site gives an explanation, a definition and an example of ANOVA for regression. Topics include analysis of variance calculations for simple and multiple regression, and F-statistics.Tue, 17 May 2005 05:04:04 -0400Java Applets for Visualization of Statistical Concepts
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=435
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=435This collection of applets simulate many different statistical concepts such as: distributions, correlation, hypothesis testing, regression, and ANOVA. Tue, 17 May 2005 03:40:17 -0400A Visualization Tool for One and Two-Way Analysis of Variance Article
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=755
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=755This is an article published in the Journal of Statistics Education describing the ANOVA Visualization Tool and how it can be used in class.Fri, 13 May 2005 03:37:49 -0400Psychological Statistics
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=771
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=771This site contains materials for a college level undergraduate statistics course. The approach places emphasis on practical application. Examples are shown with hand computations and with the Minitab statistical program (V13.1). There are a couple of spreadsheets as well. Topics include: Frequency Distributions, Graphing Techniques, Central Tendency, Variability, Relative Standing, Correlation , Dichotomous Variables, Continuous Variables (1 and 2 sample), ANOVA: One Way and Two Way, and Nonparametric Statistics.Fri, 13 May 2005 02:29:28 -0400Lecture and Lab Things
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=777
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=777This page is a collection of examples, demonstrations, and exercises that can be used to motivate a lecture, demonstrate an important point, or create a laboratory exercise for students. Topics include the following: Descriptives, Normal Distribution, Sampling Distributions, Probability, Chi-Square, t tests, Power, Correlation/Regression, One-way Anova, Multiple Comparisons, Factorial Anova, Repeated Measures, Multiple Regression, General Linear Model, Log Linear Models, and Distribution-Free Tests.Fri, 13 May 2005 11:58:24 -0400Religious Fundamentalism and Optimism
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=939
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=939This example is designed to test whether religiosity is correlated with optimism. The page describes the study, has a link to the data set, and describes the method of analysis. Analysis includes ANOVA and regression.Fri, 13 May 2005 11:46:36 -0400One-way Anova of PTSD Data
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=943
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=943This page was written as instructions for a SAS lab assignment, but the example can be used with other programs. The study compares three treatments for rape victims against each other and a control group to see which treatment is most effective at reducing Post Traumatic Stress Disorder symptoms.Fri, 13 May 2005 11:46:36 -0400Robustness of t test and ANOVA
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=635
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=635 This applet lets you explore the effect of violations of the assumptions of normality and homogeneity of variance on the type I error rate and power of t tests (and two-group analysis of variance).Thu, 12 May 2005 04:21:11 -0400Magnets and Pain Relief
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=637
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=637This case study assesses the question, "Can the application of magnetic fields be an effective treatment for pain?" It addresses concepts including: boxplots, stem and leaf displays, correlated t-test, two-sample t-test, repeated measures analysis of variance, and analysis of covariance. Thu, 12 May 2005 04:09:38 -0400Weapons and Aggression
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=636
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=636This case study addresses the question: "Does the mere presence of a weapon increase the accessibility of aggressive thoughts?" It concerns the following concepts: quantile and box plots, stem and leaf displays, one-sample t test, confidence interval, within-subjects ANOVA, and consequences of violation of normality assumption.Thu, 12 May 2005 04:08:05 -0400Instructor Reputation and Teacher Ratings
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=639
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=639This case study covers the concepts including: boxplots, stem and leaf displays, two-sample t tests, and analysis of variance. It also assesses the question, "Does an instructor's reputation affect ratings of the instructor's lecture?" Thu, 12 May 2005 04:06:35 -0400Natural Language Interface
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=643
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=643This case study assesses the question, "Is it easier to learn to use computer software that uses natural language commands?" Concepts: analysis of covariance, adjusted means, boxplotsThu, 12 May 2005 04:03:34 -0400Against All Odds: 24. Inference for Two-Way Tables
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=621
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=621In this free online video program, "a two-way table of counts displays the relationship between two ways of classifying people or things. This program concerns inference about two-way tables, covering use of the chi-square test and null hypothesis in determining the relationship between two ways of classifying a case. The methods are used to investigate a possible relationship between a worker’s gender and the type of job he or she holds." This individual video is accessed by scrolling down to the "Individual Program Descriptions - 24. Inference for Two-Way Tables” and clicking the "VOD" icon at the top-right of the description.Thu, 12 May 2005 12:43:25 -0400Dataset Archives
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=843
http://www.causeweb.org/cwis/index.php?P=FullRecord&ResourceId=843The datasets on this page are classified by analysis technique (ANOVA, Linear Regression, Markov Chain Monte Carlo, Nonlinear Regression, and Univariate Summary Statistics) and by level of difficulty (lower, average, higher). They were originally intended to test statistical software.Wed, 11 May 2005 01:04:12 -0400