The concept known as the law of the instrumentotherwise known as the law of the hammer Maslow's hammer or gavelor the Bumpa Catch A Fire - Errorsmith - Le Trilliardaire Mix hammer[a] is a cognitive bias that involves an over-reliance on a familiar tool.
As Abraham Maslow said in"I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail. The concept is attributed both to Maslow  and to Abraham Kaplan,   although the hammer and nail line may not be original to either of them. It has in fact been attributed to sources ranging from Buddha to the Bible to Mark Twainthough it cannot be found in any of their writings.
The English expression "a Birmingham screwdriver " meaning a hammer, references the habit of using the one tool for all purposes, and predates both Kaplan and Maslow by at least a century. Ina London periodical, Once a Weekcontained this observation: "Give a boy a hammer and chisel; show him how to use them; at once he begins to hack the doorposts, to take off the corners of shutter and window frames, until you teach him a better use for them, and how to keep his activity within bounds.
The first recorded statement of the concept was Abraham Kaplan 's, in "I call it the law of the instrument, and it may be formulated as follows: Give a small boy a hammer, and he will find that everything he encounters needs pounding. An article in the June issue of the Journal A Hammer And Nails - Jimmy Dean - A Hammer And Nails / I Taught Her Everything She Knows Medical Education stated that "the highlight of the 3-day meeting He urged that scientists exercise good judgment in the selection of appropriate methods for their research.
Because certain methods happen to be handy, or a given individual has been trained to use a specific method, is no assurance that the method is appropriate for all problems.
In The Conduct of Inquiry: Methodology for Behavioral ScienceKaplan again mentioned the law of the instrument saying, "It comes as no particular surprise to discover that a scientist formulates problems in a way which requires for their solution Un Jour Il Viendra Mon Amour - François Cousineau - Clin doeil à des amis those techniques in which he himself is especially skilled.
In a essay collection, Computer Simulation of Personality: Frontier of Psychological TheorySilvan Tomkins wrote about "the tendency of jobs to be adapted to A Hammer And Nails - Jimmy Dean - A Hammer And Nails / I Taught Her Everything She Knowsrather than adapting tools to jobs".
He wrote: "If one has a hammer one tends to look for nails, and if one has a computer with a storage capacity, but no feelings, one is more likely to concern oneself with remembering and with problem solving than with loving and A Hammer And Nails - Jimmy Dean - A Hammer And Nails / I Taught Her Everything She Knows . The computer program may be our current hammer, but it must be tried. One cannot decide from purely armchair considerations whether or not it will be of any value.
Maslow's Jason Newsted Interview - Metallica - Destroy Garage, popularly phrased as " if all you have is a hammer, everything looks like a nail " and variants thereof, is from Abraham Maslow's The Psychology of Sciencepublished in Abraham Maslow wrote: "I remember seeing an elaborate and complicated automatic washing machine for automobiles that did a beautiful job of washing them.
But it could do only that, and everything else that got into its clutches was treated as if it were an automobile to be washed. I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.
In his book, Of Paradise and Powerhistorian Robert Kagan suggested a corollary to the law: "When you don't have a hammer, you don't want anything to look like a nail. InLee Loevinger of the Federal Communications Commission dubbed the law "Loevinger's law of irresistible use", and applied it to government: "The political science analogue is that if there is a government agency, this proves something needs regulating.
Ininvestor Warren Buffett criticized academic studies of financial markets that made use of inappropriate mathematical approaches: "It isn't necessarily because such studies have any utility; it's simply that the data are there and academicians have worked hard to learn the mathematical skills needed to manipulate them. Once these skills are acquired, it seems sinful not to use them, even if the usage has no utility or negative utility.
As a friend said, to a man with a hammer, everything looks like a nail. The law of the instrument has been seen in the prescription of anti-psychotic drugs. During Maslow's era, the only medicines available for psychiatric patients were the anti-psychotics stelazine and thorazineso other mental illnesses were often treated as if they were psychoses. The notion of a golden hammer, "a familiar technology or concept applied obsessively to many software problems", was introduced into information technology literature in as an anti-pattern : a programming practice to be avoided.
Gilgado has written that the law is still relevant in the 21st century and is highly applicable to software development. Many times software developers, he observed, "tend to use the same known tools to do a completely new different project with new constraints". He blamed this on "the comfort zone state where you don't change anything to avoid risk.
The problem with using the same tools every time you can is that you don't have enough arguments to make a choice because you have nothing to compare to and is limiting your knowledge. This includes using a computer language with which one is unfamiliar.
He noted that the product RubyMotion enables developers to "wrap" unknown computer languages in a familiar computer language and thus avoid having to learn them. But Gilgado found this approach inadvisable, because it reinforces the habit of avoiding new tools.
One observer stated in that the law of the instrument may be "the least discussed law when talking about education", but is "the most important to warn for in educational discussions". He asked: "How many times do you read: this tool will change everything in education? From Wikipedia, the free encyclopedia. Redirected from Golden hammer. A cognitive bias. Brislin Wohlwill eds.
Environment and Culture. Maslow The Psychology of Science. The ultimate training workshop handbook. McGraw-Hill Professional. Cartwright The management of human settlements in developing countries: case studies in the application of microcomputers. The Pluralist. McQuade Cognition and Economics. Emerald Group Publishing. Dictionary of Slang. Quote Investigator.
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