bet365 Play online games A new study discovery，If the questionnaire contains too much similar types of problems，The data returned may not be reliable。

According to the official website of the Riverside Branch of the University of California, January 28th，Ye Li, Assistant Professor of Management of the School，Transliteration) and others in the new research "The more you ask，less income: In the External Effectiveness of Additional problems，Bet365 app download Examination of market research、Economics or public policy research is commonly used for quantitative questionnaire surveys whether the data collected is more data, the better，Is too many questions whether to reduce the quality of the answer。

Researchers have carried out experiments involving choice and preferences，Experimental results show，As the participants answered more and more structural similar repetitive questions，Their answering decision began to "adapt" questionnaire，that is to process less information、Learn to give some weights with greater attributes、"Psychological shortcut" for certain bet365 live casino games combination attributes。In one of the experiments，Questionnaire asked the participants' preference for different configuration laptop computers，For example，Whether willing to sacrifice the screen size to a certain extent to obtain a larger storage space。

Researchers discovered，When the participants continue to answer the small difference、When the problem of laptop configuration，Participants will still read the question carefully when answering the first two or three questions，But the participants will only answer a certain parameter (such as the battery life)。Although scientists know that humans will adapt to the environment bet365 best casino games they live，But most of the behavioral research methods used to measure preferences underestimated this factor。"When facing 6-8 problems with small differences，People have already begun to use psychological shortcuts，Faced with more problems，People will feel tired，tend to give the same answer。"Li Ye said。

This new study gives some help to enhance the data validity of the questionnaire survey，How to save time and money at the same time。For example，You can use the process tracking method to identify "Adaptation"，Determine whether the data validity is threatened; it can be continuously changed the form of task、bet365 best casino games Add filling problem、Set the rest time to weaken or delay "adapting"; it can make the form and background diversified，Comprehensive multiple measurement methods to maximize the effectiveness。

　(Wang Youran/Compilation)