The phrase "ascertain the representativeness" is correct and usable in written English.
It can be used in contexts where you need to determine how well a sample or data set reflects the characteristics of a larger population.
Example: "In order to draw valid conclusions from our survey, we must ascertain the representativeness of our sample group."
Alternatives: "determine the representativeness" or "evaluate the representativeness".
Thus it is important to ascertain the representativeness of the sample that will be recruited.
Concerted efforts to ascertain the representativeness of the data base were strongly encouraged.
Participant demographic information collected at baseline will be used to ascertain the representativeness of each group with respect to the wider Frankston City Council population.
are not known; the organisation does not keep such information thus it is impossible to ascertain the representativeness of the sample.
It was difficult to ascertain the representativeness of the setting and samples in relation to target populations as most studies recruited participants through various health and community organizations and hence only individuals already engaged with health or community services were included [ 50, 55, 57, 58, 60].
Finally, Hill, Thompson & Williams' [ 34] criteria were adopted to ascertain the representativeness of themes: 'general' — applies to all cases; 'typical'— applies to half or more cases; 'variant' — applies to more than two but less than half the cases; and those that apply to only one or two cases are not reported.
Furthermore, there are analytical difficulties in detecting and quantifying virus in shellfish samples and in monitoring them; other problems include ascertaining the representativeness of the sample (2, 6 ) and the high cost of applying the technique in areas with extensive mollusk production.
It would be desirable to ascertain the wider representativeness of the results by analysing accident data from other countries in a similar manner.
As elsewhere, it is difficult to ascertain the degree of representativeness of the population of young heroin users in the three cities where the study was conducted.
They do not get the facts; they "ascertain the data".
Swedroe again used Morningstar data to ascertain the correct benchmark.
