Useful tips for everyday
When to adjust for baseline covariates in randomized controlled trials? This is rather unfortunate, as it means that trials of the same treatments, in the…
Do you report standardized or unstandardized betas? It would best to report both the unstandardized slopes and the standardized slopes. Having the unstandardized slopes makes…
How do you replace numbers in SPSS? To find and/or replace data values in Data View or attribute values in Variable View: Click a cell…
How to determine how well a binary logistic regression fits your data? To determine how well the model fits your data, examine the statistics in…
What does it mean for two random variables to be correlated? correlation In statistics, correlation or dependence is any statistical relationship, whether causal or not,…
What is the hypothesis for multiple regression? The main null hypothesis of a multiple regression is that there is no relationship between the X variables…
How do you determine if AZ score is reasonable? A positive z-score indicates the raw score is higher than the mean average. For example, if…
How do you choose goodness-of-fit test? To calculate a chi-square goodness-of-fit, it is necessary to set the desired alpha level of significance (e.g., if your…
How do you calculate the weighted average median? Computing the Weighted Median as a Calculation Filter out all null values & weights, along with weights…
How to compare r2 values in two models? I recommend not to rely on R2 as a measure to test if a explanatory variable improves…