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