Useful tips for everyday
How do you get Homoscedasticity? So when is a data set classified as having homoscedasticity? The general rule of thumb1 is: If the ratio of…
What is a 2 by 2 between subjects design? 1 Answer. A 2×2 factorial design is a trial design meant to be able to more…
What are some results of skewed population distributions? If the population is skewed, then the distribution of sample mean looks more and more normal when…
How are missing data in covariates handled in? Multiple imputation is an increasingly popular method for handling missing data which involves replicating the original dataset…
What does it mean when the test statistic is 0? A test statistic is a standardized value that is calculated from sample data during a…
How to do repeated measures ANOVA with covariates in SPSS? For Model 3, we will use the mixed command to duplicate the analysis from Model…
What does a higher z value mean? Explanation: A high z -score means a very low probability of data above this z -score. Note that…
Is the negative log likelihood convex? log-likelihood is convex (i.e. by equating gradient to 0, which is the optimality criterion for a convex function). Is…
What defines normal behavior? ‘Normal’can be defined as any behavior or condition which is usual, expected, typical, or conforms to a pre-existing standard. ‘Normal behaviour’…
Is the average of the averages the same as the overall average? The average of averages is only equal to the average of all values…