systematic error
systematic error (sis´t
mat´ik),
Etymology: Gk, systema + L, errare, to wander
a nonrandom statistical error that affects the mean of a population of data and defines the bias between the means of two populations.
systematic error (sis´t
mat´ik),n a nonrandom statistical error that affects the mean of a population of data and defines the bias between the means of two populations.
error
the wrong answer in an experiment or result to a questionnaire.
experimental error
of two types, errors of objectivity when the experimenter knows the groups and the expected result, and errors of detection or measurement due to inadequate technique or the uneven application of measuring techniques.
random error
error which occurs due to chance, such as sampling error.
sampling error
one due to the fact that the result obtained from a sample is only an estimate of that obtained from using the entire population.
systematic error
when the error is applied to all results, i.e. those due to bias.
error types I and II
in making a statistical test, you can reject the null hypothesis when it is true (type I) or accept the null hypothesis when it is false (type II).
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