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- Prevalence_effect abstract "In psychology, the prevalence effect is the phenomenon that one is more likely to miss (or fail to detect) a target, when the said target has low prevalence (low frequency) than high prevalence (high frequency). A real-world application of this phenomenon occurs in airport security screening. For example, as the occurrence of people carrying guns though security check points rarely occurs, the security staff are likely to fail to detect those attempting to carry weapons onto the plane. An easy way to remember this phenomenon is simply put, "if you don't find it often, you often don't find it".In visual perception target prevalence is a term used to describe the salience (or visibility) of an object(s) in the environment. Target prevalence powerfully influences visual search.An experiment similar to an x-ray baggage search at an airport reveals how likely one is to make errors when searching for low prevalence targets. 50% produced 7% miss errors (typical for laboratory search tasks of this sort). 10% prevalence produced 16% miss errors. -1% prevalence produced 30% miss errors.Normally people search for common things such as their favorite jelly bean in a bag of various jelly flavors. When we look for things that are rare e.g. our favorite jelly bean in a $2 mix of various lollies, we are likely to abandon the search fairly rapidly because the probability of success is low and the stakes are not particularly high. Some searches, however, combine low target prevalence with very high stakes. For example, medical screening tasks like mammography or cytopathology screening are critically important searches for targets that are rarely present (typically under 1% of cases) or as mentioned above weapons in airport baggage screening. Missing these targets can have serious consequences.".
- Prevalence_effect wikiPageExternalLink visualsearch.html.
- Prevalence_effect wikiPageExternalLink transportation-security-officer-tso.
- Prevalence_effect wikiPageID "42486468".
- Prevalence_effect wikiPageLength "17436".
- Prevalence_effect wikiPageOutDegree "10".
- Prevalence_effect wikiPageRevisionID "671868982".
- Prevalence_effect wikiPageWikiLink Category:Psychology.
- Prevalence_effect wikiPageWikiLink Category:Statistical_ratios.
- Prevalence_effect wikiPageWikiLink Category:Visual_perception.
- Prevalence_effect wikiPageWikiLink Cytopathology.
- Prevalence_effect wikiPageWikiLink Eye_tracking.
- Prevalence_effect wikiPageWikiLink Frequency.
- Prevalence_effect wikiPageWikiLink Mammography.
- Prevalence_effect wikiPageWikiLink Prevalence.
- Prevalence_effect wikiPageWikiLink Psychology.
- Prevalence_effect wikiPageWikiLink Visual_perception.
- Prevalence_effect wikiPageWikiLinkText "Prevalence effect".
- Prevalence_effect date "April 2015".
- Prevalence_effect hasPhotoCollection Prevalence_effect.
- Prevalence_effect reason "vague".
- Prevalence_effect wikiPageUsesTemplate Template:Clarify.
- Prevalence_effect wikiPageUsesTemplate Template:Multiple_issues.
- Prevalence_effect wikiPageUsesTemplate Template:Reflist.
- Prevalence_effect subject Category:Psychology.
- Prevalence_effect subject Category:Statistical_ratios.
- Prevalence_effect subject Category:Visual_perception.
- Prevalence_effect hypernym Phenomenon.
- Prevalence_effect type Disease.
- Prevalence_effect comment "In psychology, the prevalence effect is the phenomenon that one is more likely to miss (or fail to detect) a target, when the said target has low prevalence (low frequency) than high prevalence (high frequency). A real-world application of this phenomenon occurs in airport security screening. For example, as the occurrence of people carrying guns though security check points rarely occurs, the security staff are likely to fail to detect those attempting to carry weapons onto the plane.".
- Prevalence_effect label "Prevalence effect".
- Prevalence_effect sameAs m.011f0vym.
- Prevalence_effect sameAs Q18344462.
- Prevalence_effect sameAs Q18344462.
- Prevalence_effect wasDerivedFrom Prevalence_effect?oldid=671868982.
- Prevalence_effect isPrimaryTopicOf Prevalence_effect.