Use and Interpret ANOVA in SPSS

ANOVA is used to compare three or more groups on a normally distributed continuous outcome in SPSS. http://www.scalelive.com/anova.html #statistics #anova #research #science   #tutorial #spss

How Do Ordinal Outcomes Affect Statistical Power?

Ordinal outcomes decrease statistical power and increase the needed sample size. http://www.scalelive.com/statistical-power-and-ordinal-outcomes.html

 #statistics #research #science

Odds Ratios with 95% Confidence Intervals

Use and interpret odds ratios with 95% confidence intervals. http://www.scalelive.com/odds-ratio.html

 #statistics #research #science #tutorial

Within-Subjects Research Designs Increase Statistical Power

Within-subjects research designs increase statistical power while between-subjects and multivariate designs decrease power. http://www.scalelive.com/statistical-power-and-research-designs.html

#statistics #research #science #medicine #tutorial

Critically Appraise RCT Evidence

Make sure that Randomized Controlled Trial (RCT) evidence is valid and credible. http://www.scalelive.com/appraising-randomized-controlled-trial-evidence.html

#research #medicine #science #RCT #statistics #tutorial #EBM

Convenience Sampling May Be The Most Common Method of Research Sampling

Convenience sampling means sampling from populations that are accessible and available to researchers. http://www.scalelive.com/convenience-sampling.html
#research#science #statistics #sampling #tutorial

Prospective Research Designs: Incidence, Relative Risk, and Longitudinal Data

Generate measures of incidence and relative risk using prospective research designs. http://www.scalelive.com/prospective-research-designs.html

 #research #science #tutorial