One of the three components of the OMERACT filter, along with truth and discrimination. A test must be feasible (i.e. not costly in time, effort or finance) otherwise it may be too difficult or too expensive to complete. For example, if an outcome measure included 300 questions which patients must answer, then that would be considered too physically taxing and therefore not be feasible. Similarly, if an outcome measure took a clinician one hour to complete for each patient, then that too would not be feasible because of the excessive time and expense.