If “randomlike” behavior can be learned in a laboratory setting, a question is the extent to which men and women can profit from systematic feedback in successfully predicting random events. Undergraduate volunteers (34 men and 78 women) were asked to predict the identity of computer-random numbers arranged in sets of 25 digits (1 to 5) and displayed individually on a Televideo computer terminal. Men and women (between-subjects) were instructed to predict 4 sets of 25 random digits, and all subjects were given immediate feedback of the correct target for 2 of the four sets (within-subjects) in a counterbalanced design. Chi-squared tests of the distribution of predictions showed significant gender dependencies. Also, the distribution of predictions was significantly dependent upon whether the subjects received feedback after making a prediction. Implications for “psi” research and “chaos” theory are discussed.
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References
1.
BakanP. (1960) Response tendencies in attempts to generate binary series. American Journal of Psychology, 73, 127–131.
2.
DevaneyR. L. (1989) An introduction to chaotic dynamical systems. (2nd ed.) Redwood City, CA: Addison-Wesley.
3.
EdgingtonE. E. (1969) Approximate randomization tests. Journal of Psychology, 72, 143–149.
4.
EdgingtonE. E.StrainA. R. (1973) Randomization tests: Computer time requirements. Journal of Psychology, 85, 89–95.
5.
FergusonG. A. (1976) Statistical analysis in psychology and education. New York: McGraw-Hill.
6.
FreemanJ. A. (1967) Sex differences, target arrangement, and primary mental abilities. Journal of Parapsychology, 31, 271–279.
7.
GanzachY.KrantzD. H. (1990) The psychology of moderate prediction: I. Experience with multiple determination. Organizational Behavior and Human Decision Processes, 47, 177–204.
8.
GanzachY.KrantzD. H. (1991) The psychology of moderate prediction: II. Leniency and uncertainty. Organizational Behavior and Human Decision Processes, 48, 169–192.
9.
GilmoreJ. B. (1989) Randomness and the search for psi. Journal of Parapsychology, 53, 309–340.
10.
GleickJ. (1987) Chaos: Making a new science. New York: Viking Penguin.
11.
HillT. P. (1988) Random number guessing and the first-digit phenomenon. Psychological Reports, 62, 967–971.
12.
HonortonC.FerrariD. C. (1989) “Future Telling”: A meta-analysis of forced-choice precognition experiments, 1935–1987. Journal of Parapsychology, 53, 281–308.
13.
LewisD.BurkeC. J. (1949) The use and misuse of the chi-square test. Psychological Bulletin, 46, 433–489.
14.
MadiganS.LawrenceV. (1983) ANOVA II, a general analysis of variance program. North-ridge, CA: Human Systems Dynamics.
15.
McGill University System for Interactive Computing. (1980) (IBM Form #SH20–1104). Armonk, NY: IBM.
16.
NeuringerA. (1986) Can people behave “randomly?” The role of feedback. Journal of Experimental Psychology: General, 115, 62–75.
17.
PalmerJ. (1978) Extrasensory perception: Research findings. In KrippnerS. (Ed.), Advances in parapsychological research. Vol. 2: Extrasensory perception. New York: Plenum. Pp. 59–243.
18.
RaoK. R.KanthamaniH.NorwoodB. (1983) Sex-related differential scoring in two volitional studies. Journal of Parapsychology, 47, 7–21.
19.
SchusterH. G. (1984) Deterministic chaos. Weinheim, Federal Republic of Germany: Physik-Verlag.
20.
SidmanM. (1961) Tactics of scientific research. New York: Basic Books.
21.
SiegelS. (1956) Nonparametric statistics. New York: McGraw-Hill.
22.
TuneG. S. (1964a) A brief survey of variables that influence random generation. Perceptual and Motor Skills, 18, 705–710.
23.
TuneG. S. (1964b) Response preferences: A review of some relevant literature. Psychological Bulletin, 61, 286–302.
24.
VitulliW. F. (1982) Effects of immediate feedback on computer-assisted testing of ESP performance. Psychological Reports, 51, 403–408.
25.
VitulliW. F. (1983) Immediate feedback and target-symbol variation in computer-assisted psi tests. Journal of Parapsychology, 47, 37–47.
26.
VitulliW. F.AndersonC. P. (1989) Auditory and visual effects on solutions to computerized mathematics problems as a function of rate of digit presentation. Perceptual and Motor Skills, 69, 1127–1130.
27.
VitulliW. F.CainC.BroomeG. (1985) Color-mediated ganzfeld and computer-assisted feedback in psi testing. Perceptual and Motor Skills, 61, 433–434.
28.
VitulliW. F.LambertJ. K. (1987) Psychokinetic (PK) testing on a computer. Psychological Reports, 61, 301–302.
29.
VitulliW. F.TylerK. E. (1988) Covert solutions to computerized mathematics problems as a function of visibility of the numbers and rate of digit presentation. Psychological Reports, 63, 795–800.
30.
WaddellP. A.BenjaminL.KempS. (1985) Random number generation by normal subjects. Perceptual and Motor Skills, 61, 710.
31.
WagenaarW. A. (1972) Generation of random sequences by human subjects: A critical survey of literature. Psychological Bulletin, 77, 65–72.
