In addition, the subjects who were third-year undergraduate EFL students, their familiarity with one another, their proficiency level, and the impossibility of performing blind assessment could have had limiting effects on the results.
However, given the impossibility of double-blind assessment of open placebo versus no-treatment control, the effects of report bias cannot be eliminated.
Except in special cases, the impossibility of early reliable neurological assessment justifies the introduction of organ support during the initial postresuscitation phase.
The medical algorithm that we apply in our unit is displayed in Figure 2. Except in special cases, the impossibility of early reliable neurological assessment justifies the introduction of organ support during the initial postresuscitation phase.
I think it's time to reconsider the insistence of many social scientists on the near-impossibility of neutrally scientific risk assessment guidelines, procedures and tests as a sort of intellectual infatuation.
So caught up in their emotions and quick-assessment of the impossibility of their work, they're stumped, they feel trapped and they don't know how to get out.
The main drawback of our study was the impossibility to use a gold standard assessment to diagnose autonomic function.
Another potential limitation was the impossibility to have a gold standard body composition assessment, such as DEXA.
Nevertheless, the retrospective exposure assessment procedure was not based on active measurement (an impossibility in retrospective case control studies) and therefore entailed some degree of measurement error.
Some exceptions are also made for "impossible attempts", which are divided into legal impossibility, impossibility through ineptitude and physical impossibility.
