The phrase "ascertainment study" is correct and usable in written English.
It can be used in contexts related to research or analysis where the goal is to determine or establish facts or information.
Example: "The ascertainment study revealed significant insights into consumer behavior and preferences."
Alternatives: "investigation study" or "evaluation study".
The Lililwan Project is a population-based active case ascertainment study of the prevalence of FASD.
To understand the full extent of underreporting, an active ascertainment study is required [ 29].
NR contributed to the data ascertainment, study design, literature searches, analyses, and writing.
This is a population-based active case ascertainment study of all children born in 2002 and 2003 and residing in the Fitzroy Valley.
More than half of the reviewed instruments considered REs for domains including research aims, analytical approach, outcome definition and ascertainment, study population and exposure definition and ascertainment.
More than 50% of the reviewed tools considered REs under the research aims, analytical approach, outcome definition and ascertainment, study population and exposure definition and ascertainment domains.
The few active case ascertainment studies that included all diagnoses on the FASD spectrum report a median prevalence of 19.0 cases per 1000 people.
Surveillance or record review studies report a lower prevalence (often due to under-reporting) than clinic-based studies (in which there may be selection bias), while active case ascertainment studies report the highest prevalence.
Passive surveillance and clinic-based studies report a median prevalence of 0.27 and 1.9 cases per 1000 people, respectively, while active case ascertainment studies report a median of 8.5 cases per 1000 people.
24 These findings suggest that active case ascertainment studies are likely to be most accurate and that assessing the full range of diagnoses on the FASD spectrum in an entire population in high-risk communities is likely to result in high prevalence figures.
Diversity in subject ascertainment and study design across studies may significantly impact GWA replication [11].
