Compléter Summative assessment principlesVersion en ligne Fill in the gaps with a word to complete the definition. par María Guadalupe Diez Sánchez 1 measures extent amount measure value proves Validity refers to the to which a test what it is supposed to . 2 items consistency quantity scores occasions students Reliability refers to the of test when administered on different . 3 ratio cost aspect effective friendly user Practicality refers to the - of a test . 4 correspondence language world sources contents features Authenticity refers to the of tested to the real of English . 5 learning actual testing evidence effects teaching Washback refers to the of the test on the - process .