trimmed mean interquartile mean Alejandra Gonzalez-Beltran IQM Orlaith Burke Philippe Rocca-Serra The interquartile mean (IQM) (or midmean) is a statistical measure of central tendency based on the truncated mean of the interquartile range. In the calculation of the IQM, only the data in the second and third quartiles is used (as in the interquartile range), and the lowest 25% and the highest 25% of the scores are discarded. These points are called the first and third quartiles, hence the name of the IQM. https://en.wikipedia.org/wiki/Mean#Interquartile_mean metadata incomplete