{"id":330,"date":"2023-08-14T12:56:59","date_gmt":"2023-08-14T16:56:59","guid":{"rendered":"https:\/\/psychexamples.com\/wordpress\/?p=330"},"modified":"2023-08-14T13:00:53","modified_gmt":"2023-08-14T17:00:53","slug":"a-costly-mental-set","status":"publish","type":"post","link":"https:\/\/psychexamples.com\/wordpress\/2023\/08\/14\/a-costly-mental-set\/","title":{"rendered":"A Costly Mental Set"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">One of the authors had a recent experience that provides an excellent example of how a mental set can lead to poor decision-making, and in this case, considerable expense in time and money. It began when he encountered a problem with his two-year-old desktop computer. At random times, whether he was navigating web pages, writing a document, reading a pdf, or engaging in any number of other routine operations, the screen would suddenly start scrolling, or dozens of duplicate web pages would start opening, rendering the machine uncontrollable, almost as if it had been possessed by some evil digital demon. Having purchased a premium support package, he called the manufacturer\u2019s help desk. Thus began a three-month series of almost daily calls during which dozens of technicians conducted remote troubleshooting sessions, some of them lasting for hours. The techs tried everything they could think of, starting with updating drivers, uninstalling and reinstalling various kinds of software, and searching for and adjusting settings found unimaginably deep in the bowels of the system. Some technicians undid what others had done and assured the author that this would do the trick.\u00a0 It never did. Next came reinstallation of the operating system, and later, a series of onsite technician visits who replaced the main printed circuit board and, eventually, the hard drive. Nothing worked.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Finally, at the end of his rope, and frustrated at trying to work with a computer that seemed to have a mind of its own, the author ordered a new machine. He connected it to his display, his wireless keyboard and mouse, and spent a day setting up software, downloading backed up files and doing all the other chores required when a new computer arrives. Late that afternoon, the screen started scrolling uncontrollably. After staring in disbelief at this familiar rogue behavior, the penny finally dropped: If the problem reappeared with a new computer, it must reside in another component, namely the display, the keyboard, or the mouse. He did not have a spare display, but the new system had arrived with a wired keyboard and mouse. He disconnected his wireless keyboard, connected the wired one, but the problem remained. Then he disconnected the wireless mouse, connected the wired one, and was hit head on by the stunning realization that his three-month ordeal was caused by a faulty mouse that had been soundlessly clicking and scrolling its way through his applications. When he purchased and installed a new wireless mouse, the \u201ccomputer\u201d problem disappeared and has not returned.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One technician did ask the author if he had a wired mouse available to test, but because the answer was no, the topic was dropped. The mouse might have attracted more attention if the author had thought to mention to a technician that throughout this entire episode, he was replacing mouse batteries about every 10 days. That \u201cseparate\u201d problem was annoying enough that he had searched the internet for tips on how to prolong mouse battery life, but it did not occur to him to connect the battery problem to what his mental set told him was a computer problem. The final cost of his failure to consider that his original hypothesis might be wrong included the price of an unneeded new computer, at least 100 hours of pointless troubleshooting sessions that could have been spent in productive work, and many sleepless nights born of frustration and annoyance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the authors had a recent experience that provides an excellent example of how a mental set can lead to poor decision-making, and in this case, considerable expense in time and money. It began when he encountered a problem &hellip; <a href=\"https:\/\/psychexamples.com\/wordpress\/2023\/08\/14\/a-costly-mental-set\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[8],"tags":[],"class_list":["post-330","post","type-post","status-publish","format-standard","hentry","category-tca"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pcjttF-5k","jetpack-related-posts":[{"id":420,"url":"https:\/\/psychexamples.com\/wordpress\/2026\/05\/15\/personal-example-of-being-tripped-up-by-a-mental-set\/","url_meta":{"origin":330,"position":0},"title":"Personal Example of Being Tripped Up by a Mental Set","author":"dbernstein","date":"May 15, 2026","format":false,"excerpt":"I was recently wanted to move six individual sheets from an Excel workbook into their own separate workbooks. When I moved each sheet, I gave its new workbook a unique name. I successfully repeated this 5 times, but when I tried to do it the 6th sheet I got an\u2026","rel":"","context":"In &quot;Thinking and Cognitive Abilities&quot;","block_context":{"text":"Thinking and Cognitive Abilities","link":"https:\/\/psychexamples.com\/wordpress\/category\/tca\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":444,"url":"https:\/\/psychexamples.com\/wordpress\/2026\/06\/08\/update-on-a-famous-example-of-a-not-guilty-by-reason-of-insanity-case\/","url_meta":{"origin":330,"position":1},"title":"Update on a Famous Example of a Not Guilty by Reason of Insanity Case","author":"dbernstein","date":"June 8, 2026","format":false,"excerpt":"A 2022 news story found here updates the status of John Hinckley, Jr., the man who shot President Ronald Reagan in 1981, was found not guilty by reason of insanity, and was ultimately released from a mental institution. A longer, and more detailed update appears here.","rel":"","context":"In &quot;Psychological Disorders&quot;","block_context":{"text":"Psychological Disorders","link":"https:\/\/psychexamples.com\/wordpress\/category\/disorders\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":441,"url":"https:\/\/psychexamples.com\/wordpress\/2026\/06\/08\/441\/","url_meta":{"origin":330,"position":2},"title":"A Case of Misdiagnosis","author":"dbernstein","date":"June 8, 2026","format":false,"excerpt":"A news story found here recounts the case of a homeless man who was falsely identified as a criminal with a different name. Because he refused to admit being that man, he was committed to a mental institution where he was medicated for two years before the error was corrected.\u2026","rel":"","context":"In &quot;Psychological Disorders&quot;","block_context":{"text":"Psychological Disorders","link":"https:\/\/psychexamples.com\/wordpress\/category\/disorders\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":148,"url":"https:\/\/psychexamples.com\/wordpress\/2020\/09\/13\/the-sleepwalking-killer\/","url_meta":{"origin":330,"position":3},"title":"The Sleepwalking Killer","author":"dbernstein","date":"September 13, 2020","format":false,"excerpt":"A Canadian man named Kenneth Parks began suffering insomnia in his 20s. On the night of May 23, 1987, he got out of bed, drove 14 miles to his in-laws' house, killed his mother in law and injured his father-in-law with a tire iron and a knife. After the incident,\u2026","rel":"","context":"In &quot;Consciousness&quot;","block_context":{"text":"Consciousness","link":"https:\/\/psychexamples.com\/wordpress\/category\/consciousness\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":436,"url":"https:\/\/psychexamples.com\/wordpress\/2026\/05\/30\/forgetting-can-be-dangerous-and-expensive\/","url_meta":{"origin":330,"position":4},"title":"Forgetting Can be Dangerous, and Expensive","author":"dbernstein","date":"May 30, 2026","format":false,"excerpt":"On May 9, 2026, at 10:14 eastern daylight time, a Cessna 750 airplane was involved in an accident at Page Field in Fort Myers, Florida. The first officer reported that on a previous flight in the accident airplane, the crew had received multiple alerting system messages which the captain reported\u2026","rel":"","context":"In &quot;Memory&quot;","block_context":{"text":"Memory","link":"https:\/\/psychexamples.com\/wordpress\/category\/memory\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":385,"url":"https:\/\/psychexamples.com\/wordpress\/2026\/04\/23\/a-creative-research-design-for-studying-the-origins-of-hunger\/","url_meta":{"origin":330,"position":5},"title":"A Creative Research Design for Studying the Origins of Hunger","author":"dbernstein","date":"April 23, 2026","format":false,"excerpt":"The following example can be used simply to illustrate creative research design but can also be useful in a section or course on motivation to illustrate the role of memory in influencing people\u2019s decisions about when to start and stop eating. Suppose you have just finished a big lunch at\u2026","rel":"","context":"In &quot;Research Methods &amp; Statistics&quot;","block_context":{"text":"Research Methods &amp; Statistics","link":"https:\/\/psychexamples.com\/wordpress\/category\/rmstats\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/posts\/330","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/comments?post=330"}],"version-history":[{"count":2,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/posts\/330\/revisions"}],"predecessor-version":[{"id":332,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/posts\/330\/revisions\/332"}],"wp:attachment":[{"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/media?parent=330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/categories?post=330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/psychexamples.com\/wordpress\/wp-json\/wp\/v2\/tags?post=330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}