Expression: C'est la vie. Pronunciation: [say la vee] Meaning: That's life, Such is life. Register: normal. Notes: The French expression c'est la vie is used far more in English than in French, though unlike many borrowed expressions, the meaning is the same in both languages. C'est la vie is a way of acknowledging something less than ideal that has to be accepted because that's just the way life is..
Two measures of internal validity are treatment integrity and procedural reliability, the extent to which the independent variable was implemented as planned. Social validity refers to the social significance of the target behavior, the appropriateness of the procedures, and the social importance of the outcomes. Assessment of social validity typically includes evaluation of consumer opinion.
validity. the extent to which a measuring device measures what it intends or purports to measure. construct validity the degree to which an instrument measures the characteristic being investigated; the extent to which the conceptual definitions match the operational definitions.content validity verification that the method of measurement actually measures what it is expected to measure; see also face validity.ace validity a type of content validity, determining the suitability of a given instrument as a source of data on the subject under investigation, using common-sense criteria.