attrition


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Related to attrition: Attrition bias

attrition

 [ah-trĭ´shun]
the wearing away of a substance or structure (such as the teeth) in the course of normal use.

at·tri·tion

(ă-trish'ŭn),
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by the abrasive character of food or by bruxism. Compare: abrasion.
[L. at-tero, pp. -tritus, to rub against, rub away]

attrition

The dropping out of a participant in a trial or study.

at·tri·tion

(ă-trish'ŭn)
1. Wearing away by friction or rubbing.
2. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
Compare: abrasion
3. The loss of participants over the course of a study, which can create bias and threaten the internal validity of the study.
[L. at-tero, pp. -tritus, to rub against, rub away]

at·tri·tion

(ă-trish'ŭn)
1. In dentistry, physiologic loss of tooth structure caused by normal wear inherent in the aging process, as well as by the abrasive character of food or by bruxism.
2. Wearing away by friction or rubbing.
[L. at-tero, pp. -tritus, to rub against, rub away]
References in periodicals archive ?
Data gathered and compiled from annual practising certificates (APCs), by head of Massey University's nursing school Annette Huntington and reported by Nursing Council in its Nursing Cohort Report 2014, reveals these attrition rates.
The consequences of attrition (delayed graduation or noncompletion) in a nursing program are not just deleterious to the individual student.
A patient was counted as a case of attrition upon the first incident of failure to return in a timely manner.
Over the entire course of middle school, cumulative attrition rates--the percentage of students entering 5th grade who change schools before completing 8th grade--is similar at KIPP schools and district schools.
"We address this attrition and are able to keep most examiner positions filled by maintaining a group of financial institution specialists (examiner trainees) ready to step up when needed," Barr said.
Finally, there is one Department of Defense (DoD)--wide study of waiver status on attrition and performance, although it focuses on felony and serious waivers only.
I know of several national developers who had attrition rates as high as 60 percent, meaning six out of 10 buyers discontinue the purchase.
"Any tax reform sans proper implementation of the Lateral Attrition Act will not be able to achieve its full potential," Suarez said.
Therefore, new appointees are not subjected to attrition in their year of appointment.
Vocabulary and attrition are believed to be closely intertwined since lexical access and fluency are identified as the most vulnerable areas in attrition, more than syntax (Gurel, 2004; Kopke, 2002; Montrul, 2002).
and a height of 72 in., the Attrition Mill is manufactured for capacities ranging from 75-120 tph.
conducted a study to assess current information on the relationship between admission criteria and dental school performance, including the association of admissions criteria and dental school outcomes such as remediation and attrition. In order to determine whether a strong correlation existed among the admissions criteria of students who did not graduate or who required substantial remediation in order to graduate, they compared the mean of each admission score across the groups through the dental program.