During exams you can increase your group to a large number i.e. by merging with another group for one-off study session where you either focus on going through a past paper or particular areas.
"Initially I was reached out to by the NYPD to do what was, at the time, a one-off study," Simon says.
While the study offered a manageable approach for calibrating the CEFR against the CSE for tertiary English education in China, further in-depth teacher training with a set of more experienced teachers is recommended for conducting a future external validation study since it is somewhat unlikely that a single one-off study will provide sufficient evidence of alignment (Martyniuk 2010).
The report said the ONS should "be constantly horizon scanning, delving into emerging economic trends, and conducting one-off studies on the impacts of these trends on its statistics".
One-off studies based on medical record review (which we classified to Category 3) are probably less sustainable as a means of providing regular feedback and the measures are likely to be less standardised and comparable across jurisdictions.
However, the majority of these exercises appear to be one-off studies that do not provide comparable information on an annual basis.
Local evidence may be obtained from a range of sources including: routine data (e.g. on the prevalence of diseases, healthcare utilisation, or service costs); survey data (e.g. on household conditions, health and demographics); and data from one-off studies (e.g. trials conducted locally, studies of consumers' views regarding a particular health issue, and cost-effectiveness evaluations).
Much of our current understanding of trends and causes in elite athlete mortality derives from what appear to be "one-off" studies by small teams of researchers.
Similarly, the "one-off" studies from international researchers whose controls spanned 12 different countries also reflect a general trend towards increased survival rates for a diverse group of athletes relative to their country-specific controls from the general population.
A one-off study-specific modest monetary incentive to HCPs may improve participation and cooperation; 32 performing additional data-finding exercises or implementing routine data-finding exercises to maintain up-to-date GP and contact information for patients within cancer registries could also help optimise eligibility processes.
Second, much information about performance can be found in one-off studies.
