Influencing Probability Judgments By Manipulating The Accessibility of Sample Spaces  

Oleh:

Fazio, Russell H. ; Gavanski, Igor ; Hanita, Makoto

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Personality and Social Psychology Bulletin (http://journals.sagepub.com/home/pspc) vol. 23 no. 8 (1997), page 801-813.
Topik: judgement; sample spaces; influencing probability; judgements
Fulltext: 801.pdf (2.62MB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: PP45.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Two experiments are reported that evaluate predictions derived from the sample space framework of probability judgment, according to which both accuracy and error in judgements can be explained in terms of the sets of information, or sample spaces, on which they are based. Participants judged probabilities concerning fictitious individuals about whom a small amount of information was provided. The probability judgements took the form p(AIB), for which the set of B's delineates the appropriate sample space and the set of A's delineates the inappropriate sample space. The accessibility of the sets was manipulated by having participants explicitly describe typical instances from the applicable sets (Experiment 1) or by priming the relevant categories (Experiment 2). Results showed that judgments of conditional probabilities were more accurate when the appropriate set B was made accessible than when the in appropriate set A was made accessible.

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