Researchers have debated whether laypeople can detect covariation and have tried to identify conditions that might facilitate or retard this ability. Language, especially linguistic representation of variables, seems important to consider since misrepresentation appears to be relatively common in linguistic exchanges. In the present theory-based experiment, 16 subjects were asked to make judgments about the relationship between height and either weight (heavy or light) or bodyfat (fat or thin). Data provided evidence of a powerful illusory association, that is, if tall, then thin; if short, then fat, and there was no compelling evidence to suggest that subjects understood the relationship between height and weight.
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References
1.
AlloyL. B.TabachnikN. D. (1984) Assessment of covariation by humans and animals: The joint influence of prior experience and current situational information, Psychological Review, 91, 112–149.
2.
AndersonC. A.KellamK. L. (1992) Belief perseverance, biased assimilation, and covariation detection: The effects of hypothetical social theories and new data. Personality and Social Psychology Bulletin, 18, 555–565.
3.
CacioppoJ. T.PettyR. E. (1984) The efficient assessment of need for cognition. Journal of Personality Assessment, 48, 306–307.
4.
CrockerJ. (1981) Judgment of covariation by social perceivers. Psychological Bulletin, 90, 272–292.
5.
FiskeS. T.TaylorS. E. (1991) Social cognition. (2nd ed.) New York: McGraw-Hill.
6.
FordA.RichardF. D.McGahanJ. R.YoesL. (1993) Judgments based on sequential processing of identical versus reciprocal information. Paper presented at the meeting of the Southwestern Psychological Association, Corpus Christi, TX.
7.
GilovichT. (1991) How we know what isn't so: The fallibility of human reason in everyday life. New York: Free Press.
8.
JenningsD. L.AmabileT. M.RossL. D. (1982) The intuitive scientist's assessment of covariation: Data-based vs. theory-based judgments. In TverskyA.KahnemanD.SlovicP. (Eds.), Judgment under uncertainty: Heuristics and biases. New York: Cambridge Univer. Press. Pp. 211–230.
9.
KelleyH. H. (1967) Attribution theory in social psychology. In JonesE. E.LevineD. (Eds.), Nebraska symposium on motivation. Vol. 15. Lincoln, NE: Univer. of Nebraska Press. Pp. 192–240.
10.
KirkR. E. (1982) Experimental design. (2nd ed.) Monterey, CA: Brooks/Cole.
11.
McGahanJ. R.MooreD.MerrittM.McCulloughM. (1988) Covariation reasoning and the sequential processing of information: A test of the memory-strain hypothesis. Paper presented at the meeting of the Southwestern Psychological Association, Tulsa, OK.
12.
McGahanJ. R.RichardF. D. (1993) A further qualification of the memory-strain hypothesisas related to covariation reasoning. Paper presented at the meeting of the Southwestern Psychological Association, Corpus Christi, TX.
13.
McGahanJ. R.WightR. (1989) Intuitive correlational reasoning with two binary variables: The influence of subtle linguistic variations. Paper presented at the meeting of the Southeastern Psychological Association, Washington, DC.
14.
McGahanJ. R.YoungS.DavisM. B.RichardF. D. (1992) Temporal delay and covariation reasoning: Another test of the memory-strain hypothesis. Paper presented at the meeting of the Southwestern Psychological Association, Austin, TX.
15.
MullenB.JohnsonC. (1990) Distinctiveness-based illusory correlations and stereoryping: A meta-analytic integration. British Journal of Social Psychology, 29, 11–28.
16.
MurphyK. R.DavidshoferC. O. (1991) Psychological testing: Principles and applications. Englewood Cliffs, NJ: Prentice-Hall.
17.
MyersD. G. (1990) Social psychology. (3rd ed.) New York: McGraw-Hill.
18.
SchallerM.O'BrienM. (1993) Intuitive analysis of covariance and group stereotype formation. Personality and Social Psychology Bulletin, 18, 776–785.
19.
ShakleeH. (1983) Human covariation judgment: Accuracy and strategy. Learning and Motivation, 14, 433–448.
20.
SmedslundJ. (1963) The concept of correlation in adults. Scandinavian Journal of Psychology, 4, 165–173.
TrolierT. K.HamiltonD. L. (1986) Variables influencing judgments of correlational relations. Journal of Personality and Social Psychology, 50, 879–888.
23.
YoesL. (1994) The effects of cognitive busyness and temporal delay on covariation judgments. Unpublished master's thesis, Northeast Louisiana Univer., Monroe, LA.
