"Kids today are extremely price-savvy," said Irma Zandl, a Manhattan consultant who studies trends among teenagers.
Said Ms. Zandl, who studies trends among young girls and their parents: "In an age of Britney Spears, it seems almost reassuring and positive".
"The slide is not inevitable," said Chuck Hassebrook, director of the Center for Rural Affairs in Walthill, Neb., a nonprofit group that studies trends in rural areas.
Greg Heinzman, director of the Rutgers Youth Sports Research Council, an organization that trains volunteer coaches across the state and studies trends in the field, says that youth sports suffer from an overabundance of parental angst.
Brian Leiter, a professor at the University of Texas School of Law at Austin, studies trends in job placement and developed a formula to determine which law schools placed the largest percentage of graduates at top national firms.
According to Irma Zandl, a Manhattan consultant who studies trends among teenagers, this year, it's Japanese hair straightening, Brazilian bikini waxing, teeth whitening at a dental day spa and eyebrow sculpturing.
The requirements should at least comply with the established international standards for randomised studies (CONSORT) [11], non-randomised interventional studies (TREND-2) [12], and epidemiological observational studies (STROBE) [13].
Within the included studies, trends in overweight and obesity over time were assessed separately for girls and boys.
Moreover, CAWSES-II TG-2 scientists made progress in the study trend topics outside the TG-2 itself.
State and local governments are allowed to use the data to study trends in highway use.
