J. Med. Internet Res. - The effects of preference for information on consumers' online health information search behavior.

Tópicos

{ inform(2794) health(2639) internet(1427) }
{ studi(2440) review(1878) systemat(933) }
{ assess(1506) score(1403) qualiti(1306) }
{ design(1359) user(1324) use(1319) }
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{ medic(1828) order(1363) alert(1069) }
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{ method(1969) cluster(1462) data(1082) }

Resumo

CKGROUND: Preference for information is a personality trait that affects people's tendency to seek information in health-related situations. Prior studies have focused primarily on investigating its impact on patient-provider communication and on the implications for designing information interventions that prepare patients for medical procedures. Few studies have examined its impact on general consumers' interactions with Web-based search engines for health information or the implications for designing more effective health information search systems.OBJECTIVE: This study intends to fill this gap by investigating the impact of preference for information on the search behavior of general consumers seeking health information, their perceptions of search tasks (representing information needs), and user experience with search systems.METHODS: Forty general consumers who had previously searched for health information online participated in the study in our usability lab. Preference for information was measured using Miller's Monitor-Blunter Style Scale (MBSS) and the Krantz Health Opinion Survey-Information Scale (KHOS-I). Each participant completed four simulated health information search tasks: two look-up (fact-finding) and two exploratory. Their behaviors while interacting with the search systems were automatically logged and ratings of their perceptions of tasks and user experience with the systems were collected using Likert-scale questionnaires.RESULTS: The MBSS showed low reliability with the participants (Monitoring subscale: Cronbach alpha=.53; Blunting subscale: Cronbach alpha=.35). Thus, no further analyses were performed based on the scale. KHOS-I had sufficient reliability (Cronbach alpha=.77). Participants were classified into low- and high-preference groups based on their KHOS-I scores. The high-preference group submitted significantly shorter queries when completing the look-up tasks (P=.02). The high-preference group made a significantly higher percentage of parallel movements in query reformulation than did the low-preference group (P=.04), whereas the low-preference group made a significantly higher percentage of new concept movements than the high-preference group when completing the exploratory tasks (P=.01). The high-preference group found the exploratory tasks to be significantly more difficult (P=.05) and the systems to be less useful (P=.04) than did the low-preference group.CONCLUSIONS: Preference for information has an impact on the search behavior of general consumers seeking health information. Those with a high preference were more likely to use more general queries when searching for specific factual information and to develop more complex mental representations of health concerns of an exploratory nature and try different combinations of concepts to explore these concerns. High-preference users were also more demanding on the system. Health information search systems should be tailored to fit individuals' information preferences.

Resumo Limpo

ckground prefer inform person trait affect peopl tendenc seek inform healthrel situat prior studi focus primarili investig impact patientprovid communic implic design inform intervent prepar patient medic procedur studi examin impact general consum interact webbas search engin health inform implic design effect health inform search systemsobject studi intend fill gap investig impact prefer inform search behavior general consum seek health inform percept search task repres inform need user experi search systemsmethod forti general consum previous search health inform onlin particip studi usabl lab prefer inform measur use miller monitorblunt style scale mbss krantz health opinion surveyinform scale khosi particip complet four simul health inform search task two lookup factfind two exploratori behavior interact search system automat log rate percept task user experi system collect use likertscal questionnairesresult mbss show low reliabl particip monitor subscal cronbach alpha blunt subscal cronbach alpha thus analys perform base scale khosi suffici reliabl cronbach alpha particip classifi low highprefer group base khosi score highprefer group submit signific shorter queri complet lookup task p highprefer group made signific higher percentag parallel movement queri reformul lowprefer group p wherea lowprefer group made signific higher percentag new concept movement highprefer group complet exploratori task p highprefer group found exploratori task signific difficult p system less use p lowprefer groupconclus prefer inform impact search behavior general consum seek health inform high prefer like use general queri search specif factual inform develop complex mental represent health concern exploratori natur tri differ combin concept explor concern highprefer user also demand system health inform search system tailor fit individu inform prefer

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