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Belief bias
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Belief bias
Belief bias is the tendency to judge the strength of arguments based on the plausibility of their conclusion rather than how strongly they justify that conclusion. A person is more likely to accept an argument that supports a conclusion that aligns with their values, beliefs and prior knowledge, while rejecting counter arguments to the conclusion. Belief bias is an extremely common and therefore significant form of error; we can easily be blinded by our beliefs and reach the wrong conclusion. Belief bias has been found to influence various reasoning tasks, including conditional reasoning, relation reasoning and transitive reasoning.
A syllogism is a kind of logical argument in which one proposition (the conclusion) is inferred from two or more others (the premises) of a specific form. The classical example of a valid syllogism is:
An example of an invalid syllogism is:
Typically, a majority of test subjects in studies incorrectly identify this syllogism as one in which the conclusion follows from the premises. It might be true in the real world that a) girls study and b) this is because they are ambitious. However, this argument is a fallacy, because the conclusion is not supported by its premises. The validity of an argument is independent from the truth of its conclusion: there are valid arguments for false conclusions and invalid arguments for true conclusions. Hence, it is an error to judge the validity of an argument from the plausibility of its conclusion. This is the reasoning error known as belief bias.
When a person gives a response that is determined by the believability of the conclusion rather than logical validity, this is referred to as belief bias only when a syllogism is used. This phenomenon is so closely related to syllogistic reasoning that, when it does occur, in areas such as Wason's selection task or the THOG problem, it is called "memory cueing" or the "effects of content".
Many researchers in thinking and reasoning have provided evidence for a dual-process cognitive approach to reasoning, judgment and decision making. They argue that these two mental processes (system 1 and system 2) engage in a constant battle for control over our brain to reason and make decisions. System 1 can be described as an automatic response system characterised by "unconscious", "intuitive" and "rapid" evaluation; whereas system 2 is said to be a controlled response system, characterised by “conscious”, “analytic” and “slow” evaluation; some researchers even claimed to have found a link between general intelligence and the effectiveness of decision making.
The dual-process cognitive theory is different from the two minds hypothesis. Research done by Jonathan St B. T. Evans in 2007 provided evidence for the view that System 1, which serves as a quick heuristic processor, fights for control over System 2's slower analytical approach. In the experiment, participants were asked to evaluate syllogisms that have valid arguments with unconvincing conclusions; valid arguments with convincing conclusions; invalid arguments with unconvincing conclusions; invalid arguments with convincing conclusions. The results show that when the conclusion is believable, people blindly accept invalid conclusions more so than invalid arguments are accepted.
Various studies have proved that the time period for which a subject is allowed to think when evaluating arguments is related to the tendency for belief bias to take place. In a study done by Evans and Holmes in 2005, they recruited two different groups of people to answer a series of reasoning questions. One group of people were given only two seconds to answer the questions; whereas the other group of people were allowed to use as much time as they would like to answer the questions. The result obtained was that a higher percentage of incorrect answers were found in the time pressured group than the other; they concluded that this was a result of a shift in logical to belief-biased way of thinking.
Hub AI
Belief bias AI simulator
(@Belief bias_simulator)
Belief bias
Belief bias is the tendency to judge the strength of arguments based on the plausibility of their conclusion rather than how strongly they justify that conclusion. A person is more likely to accept an argument that supports a conclusion that aligns with their values, beliefs and prior knowledge, while rejecting counter arguments to the conclusion. Belief bias is an extremely common and therefore significant form of error; we can easily be blinded by our beliefs and reach the wrong conclusion. Belief bias has been found to influence various reasoning tasks, including conditional reasoning, relation reasoning and transitive reasoning.
A syllogism is a kind of logical argument in which one proposition (the conclusion) is inferred from two or more others (the premises) of a specific form. The classical example of a valid syllogism is:
An example of an invalid syllogism is:
Typically, a majority of test subjects in studies incorrectly identify this syllogism as one in which the conclusion follows from the premises. It might be true in the real world that a) girls study and b) this is because they are ambitious. However, this argument is a fallacy, because the conclusion is not supported by its premises. The validity of an argument is independent from the truth of its conclusion: there are valid arguments for false conclusions and invalid arguments for true conclusions. Hence, it is an error to judge the validity of an argument from the plausibility of its conclusion. This is the reasoning error known as belief bias.
When a person gives a response that is determined by the believability of the conclusion rather than logical validity, this is referred to as belief bias only when a syllogism is used. This phenomenon is so closely related to syllogistic reasoning that, when it does occur, in areas such as Wason's selection task or the THOG problem, it is called "memory cueing" or the "effects of content".
Many researchers in thinking and reasoning have provided evidence for a dual-process cognitive approach to reasoning, judgment and decision making. They argue that these two mental processes (system 1 and system 2) engage in a constant battle for control over our brain to reason and make decisions. System 1 can be described as an automatic response system characterised by "unconscious", "intuitive" and "rapid" evaluation; whereas system 2 is said to be a controlled response system, characterised by “conscious”, “analytic” and “slow” evaluation; some researchers even claimed to have found a link between general intelligence and the effectiveness of decision making.
The dual-process cognitive theory is different from the two minds hypothesis. Research done by Jonathan St B. T. Evans in 2007 provided evidence for the view that System 1, which serves as a quick heuristic processor, fights for control over System 2's slower analytical approach. In the experiment, participants were asked to evaluate syllogisms that have valid arguments with unconvincing conclusions; valid arguments with convincing conclusions; invalid arguments with unconvincing conclusions; invalid arguments with convincing conclusions. The results show that when the conclusion is believable, people blindly accept invalid conclusions more so than invalid arguments are accepted.
Various studies have proved that the time period for which a subject is allowed to think when evaluating arguments is related to the tendency for belief bias to take place. In a study done by Evans and Holmes in 2005, they recruited two different groups of people to answer a series of reasoning questions. One group of people were given only two seconds to answer the questions; whereas the other group of people were allowed to use as much time as they would like to answer the questions. The result obtained was that a higher percentage of incorrect answers were found in the time pressured group than the other; they concluded that this was a result of a shift in logical to belief-biased way of thinking.