Rational Decisions
Rational Decisions - Related Videos
08:34
Thinking Too Much Impairs Decision-Making
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2023
Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University When we are considering a tough choice between two or more attractive options, we often end up actively weighing the pros and cons of each alternative. By reflecting on their advantages and disadvantages, we attempt to fit a complex, subjective decision into an orderly set of criteria. However, research in psychology suggests that this sort of introspective approach might not always yield the most optimal outcomes.1 In other...
08:22
Decision-making and the Iowa Gambling Task
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2023
Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California Decision-making is an important component of human executive function, in which a choice about a course of action or cognition is made from many possibilities. Damage to the inferior parts of the frontal lobes can affect a person's ability to make good decisions. However, while decision-making deficits can have a large impact on one's life, these deficits can be difficult to quantify in the laboratory.
08:10
Using Your Head: Measuring Infants' Rational Imitation of Actions
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2023
Source: Laboratories of Judith Danovitch and Nicholaus Noles—University of Louisville One of the main challenges of infancy is to learn how to achieve one’s goals in the world, whether they are to pick up a toy or to express desires to another person, and one of the most powerful tools in this learning process is imitation. However, imitation is not always as simple as copying other people’s actions; it is also necessary to realize that goals and intentions guide behavior. The world is a...
01:24
Types of Decisions and the Decision Process
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2025
The organizational buying process is structured and methodical, involving multiple stakeholders and requiring significant financial commitments. Unlike consumer purchasing, business buyers face complex decisions that demand a deep understanding of technical specifications and careful coordination among departments. These decisions are made within a framework that seeks to balance cost, quality, and efficiency and ensure long-term supplier relationships. Problem Recognition and Need...
01:29
Rationalizing Substitutions
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2026
Integrals involving non-rational functions are often difficult to evaluate using standard techniques, especially when radicals appear in the integrand. Rationalizing substitution provides a systematic method for simplifying such integrals by converting them into rational forms that are easier to handle.Consider a rod whose linear mass density depends on a constant linear density, a characteristic length, and the distance from the left end of the rod. Determining the total mass requires...
FAQs
Decision makers compare alternatives by considering both the possible value of each outcome and its estimated likelihood. An option with a highly desirable result may not be preferred if that result appears unlikely, while a less valuable but more probable outcome can become attractive. This comparison helps explain how people choose among uncertain alternatives in everyday and behavioral settings.
Limited information makes it harder to estimate outcomes and compare alternatives, while time pressure reduces the opportunity to examine consequences carefully. Under these constraints, people may rely more heavily on simplified judgments, increasing the influence of cognitive biases. Psychology studies these conditions to explain why choices can depart from the option that best serves a person’s goals.
Cognitive biases are predictable influences that can distort how people interpret information, estimate likelihood, or evaluate consequences. They may lead decision makers to favor an immediately appealing option or overlook effects that matter for long-term goals. Examining these patterns allows psychologists to distinguish deliberate comparison from systematic errors and to design approaches that support more reliable reasoning.
A basic analysis identifies the available alternatives, the information relevant to each option, the possible consequences, and the goals guiding the decision. Researchers can then examine how people estimate likelihood and value before selecting an option, while also considering limits on time and information. This framework supports comparisons between expected reasoning and observed judgment or choice.
Decision-support tools are useful when people must compare alternatives, weigh possible consequences, or keep choices aligned with longer-term goals. In psychology and behavioral science, such tools can organize relevant information and reduce predictable errors without replacing the person’s goals. Their value is especially clear in settings where judgment and choice affect health, education, work, or everyday behavior.
Interventions can focus on improving the reasoning process rather than replacing the decision maker’s objectives. By helping people attend to available information, consider possible consequences, and recognize predictable biases, they may support choices that better match long-term goals. This approach has relevance across health, education, work, and social behavior, where choices often have consequences beyond the immediate situation.