This is important as retrospective evaluations can be biased by recall problems and response shifts due to the fracture [ 9- 11].
Retrospective evaluations can be biased by recall problems and response shifts due to fracture [ 21, 33, 34].
One of the challenges inherent to administering a true false instrument is that scoring can be biased by a high guessing rate, a problem inherent to any forced-response test.
No significant differences were found between the two subgroups except for the factor "memory problems" which could be biased by alcohol consumption [ 5].
Migration analyses may be biased by method assumptions, un-sampled populations, low differentiation and convergence problems [ 44, 100, 101].
This was to investigate whether or not results were biased by proxies who perceived men as having problems at work being more likely to report drinking behaviour as dysfunctional.
Our institutions are biased by design.
The sample was biased in that visits by the individuals attending these clinics were problem based.
But there is another problem: they are biased towards men.
The results of this systematic review are possibly biased by methodological problems within some of the included studies.
