Ta eeldab, et teenust hakkavad kasutama perekonnad, kus mees ja naine töötavad ja kes tavaliselt külastavad kaubamaja reede õhtuti, tehes suuremaid sisseoste. Nii otsustab ta lülitada küsitletavate valimisse ainult reedeõhtused külastajad. Otsustusväljavõttu on sobiv kasutada, kui valimi suurus on suhteliselt väike, mis on tüüpiline tutvumisuuringutel. Näiteks kasutatakse seda meetodit sageli fookusgrupi respondentide määramiseks; · lumepaliimeetod (snowballing). See on üks eelmise meetodi versioonidest, mille olemus selgub tema nimetusest esuialgsed küsitletavad valitakse juhusliku valiku teel mõne üldkogumi liikmega kontaktteerudes; edasi kasutatakse neid infoaalikana uute nimede valikuks. Näiteks, kalli stereoaparatuuri omanikud võivad soovitada teisi omasuguseid ja need omakorda teisi. Valim koostatakse seega järgnevate küsitluste teel: · kvootväljavõtte (quota sampling)
however. When such groups have been able to build social proof for their beliefs through effective recruitment efforts, they have grown and prospered. For example, when the Dutch Anabaptists saw their prophesied year of destruction, 1533, pass uneventfully, they became rabid seekers after converts, pouring unprecedented amounts of energy into the cause. One extraordinarily eloquent missionary, Jakob van Kampen, is reported to have baptized 100 persons in a single day. So powerful was the snowballing social evidence in support of the Anabaptist position that it rapidly overwhelmed the dis- confirming physical evidence and turned two-thirds of the population of Holland's great cities into adherents. 4 SOCIAL PROOF customers soon began following suit, his invention swept the nation, and he died a very wealthy man with an estate of over $400 million (Dauten, 2004). In the process of examining the reactions of other people to resolve our un-
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