intraobserver error

in·tra·ob·serv·er er·ror

the differences between interpretations of an individual making observations of the same phenomenon at different times.

in·tra·ob·serv·er er·ror

(in'tră-ŏb-zĕr'vĕr er'ŏr) The differences in interpretation by a person making observations of the same phenomenon at different times.