when to pro rate data on missing values if there are missing items in data how do you pro rate them when do you pro-rate for missing values how to solve missing values how to measure missing values how many missing items are represented on a pro rating scale? do missing data need pro rating how to deal with missing values when do you pro rate when a missing value is less than 3 how to deal with missing values when are missing data points prorated how do you pro rating data how to deal with missing values why pro-rating for missing values how to deal with missing values in statistics how to measure data that contains missing values how to solve for missing value how to deal with missing value how many missing values should you use to calculate pro rating how to deal with missing values using pro rating