Predictive validity is the ability of a measure to predict for future occurrences. Predictive validity is established using correlations and regression. http://www.scalelive.com/predictive-validity.html
This blog presents useful research and statistical methods for researchers and graduate students from the world's first automated decision tree for applied research and statistics, Research Engineer (www.scalelive.com).
Sunday, January 10, 2016
Saturday, January 9, 2016
Absolute risk reduction is used to understand the magnitude of an efficacious treatment effect. http://www.scalelive.com/absolute-risk-reduction.html#epidemiology
Thursday, January 7, 2016
Reliability is the consistency, precision, and stability of outcomes and measures. http://www.scalelive.com/reliability.html
Wednesday, January 6, 2016
The FINER and PICO mnemonics are used to write valid and answerable research questions. http://www.scalelive.com/statistical-forum/finer-and-pico #research
Tuesday, January 5, 2016
Odds ratios with 95% confidence intervals are used as a measure of association between two categorical variables. Odds ratios are also reported and interpreted in logistic regression, multinomial logistic regression, and proportional odds regression. Finally, odds ratios are used alongside measures of prevalence in epidemiological studies. http://www.scalelive.com/odds-ratio.html
Monday, January 4, 2016
Structure a database to run all kinds of statistical tests in SPSS. http://www.scalelive.com/multivariate-database.html
Saturday, January 2, 2016
Multivariate statistics can help answer complex research questions. http://www.scalelive.com/multivariate-statistics.html #research #statistics #spss #researchengineer
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