This potentially very valuable evidence could be collected, for instance, through structured interviews with CBI managers.
Supportive evidence can be collected for instance via the study of mutation rates: communities dependent on cooperation in an open environment should have a smaller number of mutants as compared to the same community in a well-mixed (i.e. globally communicating) environment.
In some instances, more than one specimen was collected for comparison (i.e. examination of skeletal characters).
"Appreciation by the community" can be achieved by setting up a mechanism whereby information from the community is collected, through for instance exit interviews and discussions in the community.
PBC may thus be ideal for cluster analyses of habitats from which large samples of character data have been collected in a standardized manner, for instance, in the course of metagenomics projects (e.g. [ 65] and references therein).
In 1986, for instance, the Center paid $15 million for rare books and manuscripts that had been collected by Carl H. Pforzheimer, a New York investment banker who died in 1957.
Data about health service utilization were collected by asking for instance, "How often did you visit an orthopaedic specialist within the last 6 months?" As far as possible, patients' answers were checked by comparing them with the patients' files.
In future studies, objective and quantitative measures of skin, hair, and eye color should be collected by using, for instance, reflectance or digital spectroscopy and, thereby, excluding a further source of error variance.
Jane Grant of Pound Ridge, for instance, has been collecting data about the birds in her backyard for the last four years, and is now embarking on a study of the nesting habits of house finches as part of a project sponsored by the Cornell Lab of Ornithology in Ithaca that uses "citizen scientists," amateur bird watchers willing to share their sightings with scientists.
For instance, no indication was collected on the patterns of behaviour out of the two peak time zones.
