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ERIC Number: EJ987180
Record Type: Journal
Publication Date: 2012
Pages: 14
Abstractor: As Provided
Reference Count: 61
ISBN: N/A
ISSN: ISSN-0033-2933
Delay Discounting Rates Are Temporally Stable in an Equivalent Present Value Procedure Using Theoretical and Area under the Curve Analyses
Harrison, Justin; McKay, Ryan
Psychological Record, v62 n2 p307-320 Spr 2012
Temporal discounting rates have become a popular dependent variable in social science research. While choice procedures are commonly employed to measure discounting rates, equivalent present value (EPV) procedures may be more sensitive to experimental manipulation. However, their use has been impeded by the absence of test-retest reliability data. Staff and students at a regional Australian university (n = 53) participated in a matching EPV temporal discounting procedure in 2 sessions, 2 weeks apart, completing 30 one-shot, second-price auctions for two amounts, with delays ranging from 1-43 days. Discounting rates were estimated using hyperbolic and exponential models, as well as atheoretical area under the curve (AuC) analyses. Test-retest (relative) stability of the EPV procedure compared favorably with choice procedures (r = 0.75). Where discounting rates are used as a dependent variable, brief EPV procedures combined with atheoretical analyses of discounting rates are a more sensitive means to detect subtle experimental effects. (Contains 2 tables and 5 footnotes.)
Southern Illinois University Carbondale. Mailcode 4609, Rehabilitation Institute, Carbondale, IL 62901-4609. Tel: 618-536-7704; e-mail: psychrec@siu.edu; Web site: http://www.siuc.edu/~ThePsychologicalRecord/index.html
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Australia