lecture14_supplemental_slides

Lecture14_supplement - 1 1 1 B.B 1 1 1 C.C 1 D.D 1 1 E.E 1 1 F.F 1 1 UN-Correlated Cases STUDY phase At test • Participants were given pairs of

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
The Exemplar View Prototype view = categorization by computing an AVERAGE for category membership Exemplar view = categorization by learned examples Medin et al. (1982) tests which of these views is more likely Participants told to learn as much as possible about a fictitious disease called burlosis by studying KNOWN CASES with descriptions of symptoms of the disease There were 4 symptoms • Swollen eyelids; Splotches on ears; Discolored gums; Nosebleed Patients DID NOT ALL SHOW the same COMBINATION OF symptoms
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
The Exemplar View Medin et al. 1982 STUDY phase 2 DIFFERENT GROUPS OF PARTICIPANTS looked over different sets of sample cases Set 1: Correlated condition nosebleeds and discolored gums always co- occurred Set 2: Uncorrelated condition Nosebleeds and discolored gums did not co-occur
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Correlated Cases STUDY phase
Background image of page 4
Case study Swollen eyes Splotches on ears Dis- colored gums Nose- bleeds A.A.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 1 1 B.B. 1 1 1 C.C. 1 D.D. 1 1 E.E. 1 1 F.F. 1 1 UN-Correlated Cases STUDY phase At test • Participants were given pairs of test cases that they had never seen before • Asked to indicate which case in the pair was more likely to have burlosis: • For 1 of the cases, discolored gums and nosebleeds were correlated (both present; as in Roger) • For the other case, these symptoms were uncorrelated (as in Susan) Results Medin et al., 1982 • Participants who received a Study phase using correlated symptoms were more likely to diagnose cases with correlated symptoms as having the disease than cases with uncorrelated symptoms • Implications • Participants based their diagnoses on the pattern of symptoms rather than the average occurrence of each symptom (as expected from the prototype view) • People pick up on correlations of features...
View Full Document

This note was uploaded on 03/19/2010 for the course PSYCH 207 taught by Professor Lodson during the Spring '05 term at Waterloo.

Page1 / 9

Lecture14_supplement - 1 1 1 B.B 1 1 1 C.C 1 D.D 1 1 E.E 1 1 F.F 1 1 UN-Correlated Cases STUDY phase At test • Participants were given pairs of

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online