The phrase "are often erroneous and" is correct and usable in written English.
It can be used when discussing the frequency of mistakes or inaccuracies in a particular context or subject matter.
Example: "The reports generated by the system are often erroneous and lead to confusion among the team members."
Alternatives: "frequently incorrect and" or "commonly flawed and".
The issue also includes an article on efforts at the VA Palo Alto Health Care System to use peer-support services to help veterans with post-traumatic stress disorder, and a story on the growing concern that biomedical research results are often erroneous and efforts being made to solve the problem.
20 Sample size calculations are frequently based on inaccurate assumptions for the control group, calculations are often erroneous, and the hypothesised treatment effect is often fixed a posteriori.
Through it, patients learn to restructure their thinking about sleep, which is often erroneous, and to change counterproductive bedtime habits.
To the objection that the forecasts of augurs, seers, soothsayers and other diviners are often erroneous, Quintus replies that the same point may be urged against experts in other arts and callings, as, for example, physicians, mariners, and statesmen.
Other data on ashfall (such as thickness), are often erroneous perhaps due to confusion between metric versus English units and often require follow-up calls to verify.
However, this technique requires localization and tracking of specific human body parts, which are often erroneous.
Although subjective measures are in widespread use for assessing teaching and learning, there is increasing acknowledgment that students' (and other health professionals') self-assessment of their own abilities are often erroneous [ 36, 37].
Since uninformed judgments of others´ trustworthiness are often erroneous [ 106, 107], this paper might encourage reflection on the question of whether attitudes toward trust or distrust regarding euthanasia are well grounded or not, and to adopt attitudes and policies accordingly.
We find, unfortunately, that even what has been called forensic science all these years, all too frequently has nothing to do with science and it's just opinion evidence or art, and is often erroneous.
