how to assess risk taking lect 6 Flashcards
what is risk propensity
decision makers tendency to take or avoid risk
what are the measures of risk propensity
1.single item
2.multiple items
3.scenarios
4.behavioural measures
single items
Dohmen 2011
-asks about general willingness to engage in risky activity
dohmen item’s characteristics for single items
-easy to administer
-research shows it is a robust predictor of risk taking behaviour (josef)
-used mostly on traditional real life economic risky choices
-widely used in large scale studies
-have been variations
single items study
-in germany over 22000 pp
-qs example: are youi generally a person who is fully preapred to take risks or do you generally avoid taking risks
0= not at all willing to take risks, 10 = very willing to take risks
-understanding was that the single item/ no. on the scale assesses their willingness to take risks without the need for mathematical calculations
results of single items study
-large variance
-7% of indiv chose 0, small fraction chose 10
-willingness to take risks decreases steadily with age for men
-for women it decreases more rapidly from late teens to 30, then remains flat until decreasing from mid 50s
multiple items study
Dohmen, on 2000 pp
-how would you rate your willingness to take risks in the following areas? A financial matters B occupation C in leisure and sports
-5 point response scale
results of multiple items study
-risk propensity declined with age
-men more likely to take either general or domain specific risks
-men and women did not show same decrease in willingness to take risks across lifespan
limitations of single and multiple items
-multiple items, other domains not explored e.g health and social
-domain qs were abstract, no concrete examples of financial occupational etc risks
-vagueness and lack of clarity may produce sig random measurement error
-further investigation needed
self report measure as a measure of risk propensity
-Blais and Weber developed 90 item self report called domain specific risk taking scale (DOSPERT)
-looks at 5 domains: ethical, financial, health/safety, recreational and social
-evaluated diff components that sig explain proportion of domain specific variability in risk taking
self report measure results
-in financial and recreational domains, age inversely associated with risk propensity
-financial, health/safety, recreational domains: men reported greater risk propensity than women
-interaction between age and gender (financial and recreational) explains tendency for young men to display greater risk propensity than women and people of diff ages
-in social domain, women aged 40+ show increase in risk taking
scenarios
tversky and kahneman 1981
-one of first measures to evaluate risky choices in context of gains and losses
-Mayhorn: people tend to choose safe option when choices are positively phrased and risky options when framed in terms of losses
-Bruine de Bruin developed adult decision making competence measure (A-DMC)
-scenarios purpose was to replicate previous findings so looked only at financial and recreational domains
results of scenarios
-age inversely associated with financial risk taking in both gain and losses domain
-men reported greater financial risk taking when choices worded as gains
-sig interaction between age and gender
scenarios conclusion
-prospect theory = risk averse when outcomes framed as gains
-these results are OPPOSITE
-young men inclined to forego safe options in gain domain to maximise financial outcomes
(consistent with evolutionary perspective that young men follow high risk high reward strategy)
-financial risks serve to accumulate both wealth and status
behavioural measures of risk propensity
-mostly implements financial risk taking e.g balloon analogue risk task (BART) by Lejuez
-BART associated with personality traits like sensation seeking etc
-performance investigated related to risks like smoking, heavy drinking etc
-total score is average no of pumps before balloon bursts
-higher score = greater risk propensity
-pp inflate balloons as much as they can, not sure when they will pop