Test of reward contingent precall

Vernon, D. (2018) Test of reward contingent precall. Journal of Parapsychology, 82 (1). pp. 8-23. ISSN 0022-3387..

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Precall represents improved memory for material practised after the recall test. Such behaviour has been suggested to serve the needs/motives of the individual. However, attempts to examine this have met with limited success, possibly reflecting the value of the reward.

The current pre-registered study took the original approach of identifying a motivating reward: a cash reward of £10. The main study then examined the effect of offering this reward contingent upon precall performance. Two confirmatory predictions were made: first, that post recall practise will lead to greater precall. Second, that a contingent reward will elicit greater precall. A repeated measures design had participants randomly presented with 20 arousing images, after which they were given a surprise recall task. Following this a sub-set of the images was presented twice allowing them to practice. Precall scores represented the number of correctly recalled images that were subsequently repeated and baseline scores the number of correctly recalled images not repeated. Analysis showed precall scores were significantly higher than baseline, however the contingent reward had no effect. This may indicate a Type I error or an anomalous precognitive effect. Hence, some speculative ideas are proposed in an attempt to account for the pattern of data.

Item Type: Article
Uncontrolled Keywords: precall; precognition; contingent reward; arousing images
Subjects: B Philosophy. Psychology. Religion > BF Psychology > BF1001 Parapsychology > BF1002 Psychic research. Psychology of the unconscious
B Philosophy. Psychology. Religion > BF Psychology > BF1001 Parapsychology > BF1161 Telepathy. Mind reading. Thought transference
B Philosophy. Psychology. Religion > BF Psychology > BF0161 Mind and body
B Philosophy. Psychology. Religion > BF Psychology > BF0309 Consciousness. Cognition
Divisions: Faculty of Social and Applied Sciences > School of Psychology, Politics and Sociology
Depositing User: Dr David Vernon
Date Deposited: 22 Feb 2018 16:00
Last Modified: 13 Dec 2018 08:01
URI: https://create.canterbury.ac.uk/id/eprint/16997

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Last edited: 29/06/2016 12:23:00