Useful tips for everyday
How to estimate a structural equation in R? This tutorial shows how to estimate a full structural equation model (SEM) with latent variables using the…
What does a significant interaction mean in regression? The presence of a significant interaction indicates that the effect of one predictor variable on the response…
How to create an index using principal component analysis? The index corresponds to the component scores that can be exported to other statistical units by…
How is quantile regression used in econometrics and statistics? Quantile regression is a type of regression analysis used in statistics and econometrics. Whereas the method…
Can you use z score in Ttest? I have conducted a t-test and found a significant difference on my raw data. However i have standardized…
What is the importance of R2 in simple linear regression? R-squared measures the strength of the relationship between your model and the dependent variable on…
What is CP in stepwise regression? Mallows’ Cp assumes the value of (p) – the total number of parameters including the constant – when all…
What is a beta prior? In the literature you’ll see that the beta distribution is called a conjugate prior for the binomial distribution. This means…
Do bimodal distributions have two means? In statistics, a bimodal distribution is a probability distribution with two different modes, which may also be referred to…
What is the relationship between t-test and F-test? While t-test is used to compare two related samples, f-test is used to test the equality of…