In one survey, more than 17,000 students from grades 6 through 12 were told to rate on a scale of 0 to 5 how much influence their parents, friends, celebrities, the media, and teachers had on them.
Ühes uuringus paluti rohkem kui 17 000 õpilasel klassidest 6 kuni 12 hinnata viiepallisüsteemis, kui palju neid mõjutavad vanemad, sõbrad, kuulsused, meedia ja õpetajad.