Use Surveys to Answer Research Questions Related to Prevalence and Construct Validation

Use surveys to establish prevalence, compare groups, validate constructs, and measure for change. http://www.scalelive.com/survey-methodology.html
#survey #research #tutorial

Conduct Over 50 Statistical Tests in SPSS

Free access to the methods for conducting and interpreting over 50 statistical tests in SPSS. http://www.scalelive.com/spss.html #spss #statistics

Free Database and Code Book for Between-Subjects Statistical Analysis

Download a free database and code book structured for between-subjects statistics. http://www.scalelive.com/between-subjects-database.html
#statistics #database #research #science #tutorial

Structure Your Research Database for Within-Subjects Statistics

Download a free Excel-based database structured for within-subjects statistics. http://www.scalelive.com/within-subjects-database.htm l#database #research #statistics #science #tutorial

Variance in An Effect Size Greatly Impacts Statistical Power

The variance of an effect size has implications on statistical power. http://www.scalelive.com/statistical-power-and-variance-of-effect-size.html #statistics #research #science #tutorial

Statistical Power is Affected By The Scale of Measurement of The Outcome

Measurement of outcomes greatly impacts statistical power in applied clinical research. http://www.scalelive.com/statistical-power-and-outcomes.html
#statistics #research #tutorial

Use and Interpret Scheffe's Test in SPSS

Scheffe's test is one of the most stringent post hoc tests. http://www.scalelive.com/sheffes-test.html
#statistics #spss #tutorial

Crossover Randomized Designs Are Very Powerful Experimental Designs

Crossover randomized designs allow study participants to be observed after receiving both treatment and control treatment using "washout" periods. http://www.scalelive.com/crossover-randomized-design.html #research #science #tutorial

Selecting the Comparator or Control Using the PICO Framework

Establish the comparator or control group with the PICO framework when writing a research question. http://www.scalelive.com/comparator.html
#research #question #tutorial #pico

Use Propensity Score Matching in SPSS

Use propensity score matching to choose valid control participants and account for confounding variables. http://www.scalelive.com/propensity-score-matching.html
#statistics #research #science #tutorial

Generate Split-Half Reliability Evidence For A Survey Instrument

Conduct and interpret split-half reliability in SPSS. http://www.scalelive.com/split-half-reliability.html

 #statistics#psychometrics #reliability #spss #tutorial

Use and Interpret ROC Curves in SPSS

Receiver Operator Characteristic (ROC) curves can assess the sensitivity and specificity of diagnostic tests. http://www.scalelive.com/receiver-operator-characteristic.html #statistics #diagnosis #tutorial

Learn How to Use Cochran's Q in SPSS

Here are the steps for using and interpreting Cochran's Q in SPSS.
http://www.scalelive.com/cochrans-q.html #statistics #spss #tutorial

Statistical Power is Decreased With Between-Subjects Designs

Statistical significance is harder to detect when using between-subjects designs. http://www.scalelive.com/statistical-power-and-between-subjects-designs.html #statistics #research #science #tutorial

Generate Criterion Validity Evidence For A Survey Instrument

Criterion validity evidence shows that a survey instrument can predict for outcomes. http://www.scalelive.com/criterion-validity.html 
#statistics #psychometrics #validity #survey #research #science #education #tutorial

Interrupted Time Series Design Can Establish Longitudinal Effects

Use an interrupted time series design to answer your research question. http://www.scalelive.com/interrupted-time-series-design.html
#research#science #education #tutorial #medicine

Use FINER and PICO to Write Valid and Answerable Research Questions

Write research questions using the FINER and PICO frameworks. http://www.scalelive.com/research-questions.html #research #science #education #medicine #evidence #tutorial #finer #pico #statistics #psychometrics #epidemiology #database

Calculate Cronbach's alpha in SPSS

Cronbach's alpha is a measure of internal consistency reliability. http://www.scalelive.com/cronbachs-alpha.html #statistics #psychometrics #reliability #science #research #education #tutorial

Bootstrap Validation of Statistical Findings in SPSS

Validate statistical findings using the bootstrap methodology in SPSS. http://www.scalelive.com/bootstrap-validation.html
#statistics #research #science #education #tutorial #spss

Generate Several Types of Validity Evidence Using SPSS

Generate validity evidence for a construct or measure of interest. http://www.scalelive.com/validity.html
#statistics #research #validity#science #education #measurement #tutorial

Within-Subjects Designs Always Increase Statistical Power

Within-subjects designs increase statistical power because participants serve as their own controls. http://www.scalelive.com/statistical-power-and-within-subjects-designs.html

#statistics #research #science #education #tutorial