listwisepoisto

listwisepoisto is a term that appears to be a combination of English and Finnish. "Listwise" suggests something related to a list or a row of items, while "poisto" is the Finnish word for "removal" or "deletion." Therefore, "listwisepoisto" can be interpreted as the act of removing items from a list or a sequence in a specific manner.

In various contexts, such as computer programming or data manipulation, listwise removal refers to a strategy for handling missing data. When a complete case is required for analysis, and an observation has a missing value in any of the variables of interest, the entire observation (the entire "list" or "row") is removed. This contrasts with other imputation methods that might fill in missing values.

The primary advantage of listwise deletion is its simplicity. It ensures that all analyses are performed on complete data, avoiding potential biases that can arise from imputation techniques if not applied carefully. However, a significant disadvantage is the potential loss of a substantial amount of data, which can reduce statistical power and introduce bias if the missing data are not randomly distributed. This method is most appropriate when the proportion of missing data is very small and believed to be missing completely at random.