In this video I explain the sampling distribution of the mean, a comparison distribution for thinking about the probability of different mean values selected from a population. I explain how the Central Limit Theorem allows us to infer characteristics of … Read More
Mean Absolute Deviation, Variance, & Standard Deviation
In this video I explain how to use mean deviation, mean absolute deviation, variance, and standard deviation to assess dispersion in interval or ratio level data. I discuss each concept and practice calculating with a sample set of data, and … Read More
What is Heritability?
In this video I provide a basic introduction to twin studies and heritability scores. I explain how a heritability score tells us about the role of genes in explaining variance in a trait. I also discuss some common errors and … Read More