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Self-selected interval judgments compared to point judgments: A weight judgment experiment in the presence of the size-weight illusion

Gonzalez, Nichel and Svenson, Ola and Ekström, Magnus and Ekstrom, Magnus and Kriström, Bengt and Nilsson, Mats E. (2022). Self-selected interval judgments compared to point judgments: A weight judgment experiment in the presence of the size-weight illusion. PLoS ONE. 17 :3 , e0264830
[Research article]

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Abstract

Measurements of human attitudes and perceptions have traditionally used numerical point judgments. In the present study, we compared conventional point estimates of weight with an interval judgment method. Participants were allowed to make step by step judgments, successively converging towards their best estimate. Participants estimated, in grams, the weight of differently sized boxes, estimates thus susceptible to the size-weight illusion. The illusion makes the smaller of two objects of the same weight, differing only in size, to be perceived as heavier. The self-selected interval method entails participants judging a highest and lowest reasonable value for the true weight. This is followed by a splitting procedure, consecutive choices of selecting the upper or lower half of the interval the individual estimates most likely to include the true value. Compared to point estimates, interval midpoints showed less variability and reduced the size-weight illusion, but only to a limited extent. Accuracy improvements from the interval method were limited, but the between participant variation suggests that the method has merit.

Authors/Creators:Gonzalez, Nichel and Svenson, Ola and Ekström, Magnus and Ekstrom, Magnus and Kriström, Bengt and Nilsson, Mats E.
Title:Self-selected interval judgments compared to point judgments: A weight judgment experiment in the presence of the size-weight illusion
Series Name/Journal:PLoS ONE
Year of publishing :2022
Volume:17
Number:3
Article number:e0264830
Number of Pages:22
Publisher:PUBLIC LIBRARY SCIENCE
ISSN:1932-6203
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 5 Social Sciences > 501 Psychology > Psychology (excluding Applied Psychology)
URN:NBN:urn:nbn:se:slu:epsilon-p-117099
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-117099
Additional ID:
Type of IDID
DOI10.1371/journal.pone.0264830
Web of Science (WoS)000779047400031
ID Code:27959
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Resource Management
(NL, NJ) > Dept. of Forest Resource Management

(S) > Dept. of Forest Economics
Deposited By: SLUpub Connector
Deposited On:19 May 2022 14:25
Metadata Last Modified:19 May 2022 14:31

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