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RESEARCH PROGRAMS

Virtual CNR

SPSS Online Tutorials
Reference materials that show you step-by-step how to perform various statistical procedures in SPSS.

   Select one of the links below to read more:
>> SPSS Online Tutorials
>> Power Analysis
>> Survey Research
>> Presenting Data
>> Structural Equation Modeling
>> Hierarchical Linear Modeling
>> Missing Data
>> Meta-Analysis
>> Qualitative Research
>> Research Design
>> Evidence Based Practice
>> Online Calculators
>> Online Reference Shelf

How to Open or Enter Data in SPSS

How to Recode Variables in SPSS

Descriptive Statistics

Correlation

Independent-groups t test

Dependent-groups t test

Chi-square

Basic Linear Regression

Stepwise Multiple Regression

Hierarchical Multiple Regression

Nonlinear Regression

Logistic Regression

F test/ANOVA

Factorial ANOVA

ANCOVA

MANOVA and MANCOVA

Profile Analysis

Repeated Measures ANOVA

Canonical Correlation

Discriminant Function Analysis

Survival Analysis

Factor Analysis

Cluster Analysis

Need more help? Try these SPSS online movie tutorials from Texas A&M University or from UCLA.

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Power Analysis
Tools to help you determine the right sample size to maximize your chances of achieving statistically significant results. Can also be used after the fact, to determine how much statistical power a given study had.

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Option 1: U of Iowa Site (Click here for info on How to Use These Calculators)

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Option 2: Harvard University Site

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Palm Application (Palm OS application to calculate sample sizes)

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Survey Research

Use these tools to conduct basic survey research. The "Survey Monkey" tool lets you create free online surveys (up to 10 questions and 100 respondents) that you can customize to your specifications. Larger-scale surveys with more options can be set up for a modest fee. The site automatically tabulates frequency counts for responses.

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Using the Internet for Survey Researchstep 1: free text on Internet research

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Sample Size Calculatorstep 2: calculate target N for a representative sample

CNR Documentation: How to Use the Sample Size Calculator

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Survey Design Tipsstep 3: online text to help you design survey questions

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“Survey Monkey” Online Survey Toolstep 4: set up an online survey

Web Page Designing Effective Surveys tutorial on how to create an effective survey, types of questions, etc.

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Presenting Data

Tools to help you format your manuscript – including often-missed items like tables and references – in APA style.

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APA Style Helper - free download of an APA-style “crib sheet” program

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Writing for Biomedical Journals - tips on planning and writing a manuscript

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Handbook for a Statistics Project - includes a section on writing up results

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College of Nursing Poster Template #1 – use your own presentations

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College of Nursing Poster Template #2 – use your own presentations

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College of Nursing Poster Template #3 – use your own presentations

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College of Nursing Podium Template – an outline format for podium presentations

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Creating Poster Presentations – guidelines for creating a visually appealing research poster

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Structural Equation Modeling (SEM)

Reference information for two SEM applications. You can also download free student versions of both programs to try: the student versions have limits on the number of cases that can be analyzed, and the number of variables you can include in your model. The full versions of both programs are available in the CNR Computer Lab.

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Student Version of AMOS - free download

How to Use AMOS

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Student Version of LISREL - free download

How to Use LISREL

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Sobel Test for Mediation – online calculator to test the significance of indirect effects in SEM or regression

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Hierarchical Linear Modeling (HLM)

Reference information for the HLM application available in the CNR Computer Lab. You can also download a free student version of the same software, which is limited to 5 effects, 7200 level-1 observations, and 350 level-2 observations, but which is otherwise the same as the full version available in the CNR lab.

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Student Version of HLM — free download

How to Use HLM 6.0 for Repeated-Measures Data

How to Use HLM 6.0 for clustered Data

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HLM Techniques — description of alternate ways to perform HLM

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Center for Multilevel Modeling — resource site for HLM

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HLM glossary — definitions of terms for HLM

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Power Analysis for HLM — PinT program calculates standard errors

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Missing Data

Traditional approaches to missing data — dropping cases with missing data or filling in the mean score for other participants on that item — promote error in analyses. Download free tools to deal with missing data more appropriately. Some programs available in the CNR Computer Lab (LISREL and AMOS) also have built-in capabilities to handle missing data. SPSS has a commercial add-on product for missing data analysis, but this is not available in the SPSS basic package used at the College of Nursing.

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Option 1: NORM  Multiple Imputation — free program

CNR Documentation: How to Use NORM

Option 2: AMOS  — can be used to export data based on MLE

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Option 3: Mx  Maximum Likelihood Estimation — free program

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Meta-Analysis

Tools and calculators for performing meta-analytic literature reviews. The MetaWin program is a spreadsheet-based meta-analysis package that is available in the CNR computer lab. You can download a free trial version here (limited to 15 studies in your review).

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Meta-Analysis Calculators — basic meta-analysis calculator. Requires MS Excel

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CNR Documentation: How to Use the Meta-Analysis Calculators

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MetaWin Program – free trial version; full program is available in the CNR lab

CNR Documentation: How to Use MetaWin

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Compare Correlations – quick calculation of p-value for the difference between 2 r's

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Online Meta-Analysis Calculator – web-based tool gives individual effect sizes and average ES across studies

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Qualitative Research

Resource material and tools for conducting qualitative studies and using Atlas-Ti.

How to Use Atlas-Ti — the CNR's brief guide to get started with Atlas-Ti

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Atlas-Ti training — more online training on how to use Atlas-Ti

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Atlas-Ti listserv — search the archives of a user listserv for answers

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Inter-Coder Reliability in Qualitative Studies — instructions and software links

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EZText — download a free, simple text coding program from the CDC

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Transcriber — a free tool for playing back and transcribing sound files

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Forum on Qualitative Social Research — qualitative discussion board

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Research Design

Tools to help you plan your next study, and to choose the appropriate statistical tests.

Program Evaluation – March 2007 presentation at Rocky Mountain EBP Conference

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The Research Methods Knowledge Base for social science research

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Research Fables - explain basic research concepts. "Snow White and the Seven Threats to Validity" is particularly good.

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Online Research Methods Reference – help choosing an appropriate design

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CONSORT – the CONSORT statement on reporting randomized clinical trials

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TREND – the TREND statement on reporting non-randomized designs

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STARD – draft STARD statement on studies of diagnostic tests

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Treatment Fidelity Checklist – to show correct implementation of interventions

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Community-Based Research Training – curriculum on participatory research

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Checklist for CBPR – study design for participatory research

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Choosing the Right Statistical Test - includes syntax in SAS, SPSS, & Stata

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Evidence-Based Practice

How to read and interpret research articles. (Also see the reference materials in the section on Research Design above).

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EBP Glossary - terms used in EBP for nursing, from the U. of Arizona

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How to Read a Medical Journal Article - how to read a research article

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User's Guides to Evidence-Based Practice - how to evaluate research

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National Guideline Clearinghouse – clinical practice guidelines resource

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BMJ Clinical Evidence Site – research-based recommendations by diagnosis

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PICOT form – online tool for formulating "PICOT" questions

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Single-Subject Trends – a statistical program to evaluate the significance of changes in a patient’s status over time

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Online Calculators

Calculators allow you to perform common statistical tests by entering data into a web interface.

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p-Value Calculator (Stanford University) - get exact values instead of "p < .05"

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StatCrunch Java-Based Statistics Package - uploads Excel data files for analysis

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Bonferroni Calculator - correction that takes into account correlated outcomes

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SkewKurt Calculator - calculates skewness and kurtosis stats

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VassarStats Online Statistical Calculators from Vassar University

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StatPages.net - an extensive links page of online statistical tools and resources

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Online Reference Shelf

Access free online training materials about topics in statistics and research. Some of these may be useful in teaching about statistics and research methods.

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StatSoft Online Textbook - Includes “statistics advisor” to choose tests

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HyperStat Online Textbook

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StatsDirect Online Textbook

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Prism Guide to Interpreting Statistical Results 

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HipEstat – Spanish-language online statistics textbook

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Online Multivariate Statistics Text - advanced/graduate-level statistical topics

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Online Statistics Dictionary

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PowerPoint on Logistic Regression

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Rice University Virtual Stats Lab - interactive tutorials

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Comparison of Statistics Packages - compares SPSS, SAS, and Stata

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SPSS FAQ - answers to frequently asked questions about SPSS

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SPSS Syntax Examples - syntax for common procedures in SPSS

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SAS Syntax Examples - syntax for common procedures in SAS

Didn’t find your answer here? Try the print resources available in the CNR lab

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Find instruments for your next research project here.
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