Token Economies

Token economies are behavioral intervention systems that use symbolic rewards to strengthen desired actions, making them an important application of learning theory in psychology. When a person performs a target behavior, they receive tokens that can later be exchanged for meaningful backup reinforcers, linking behavior to consequences through operant conditioning and clearly defined reinforcement contingencies. Psychologists use token economies in classrooms, clinical programs, residential care, and rehabilitation settings to support skills such as task completion, cooperation, and self-management. Their structured design also helps researchers and practitioners evaluate how reinforcement schedules, motivation, and environmental conditions influence behavior change.

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Education

JoVE Business - Microeconomics

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2024

Economies of scope refer to a firm's cost advantages by producing a wider variety of products rather than focusing on a single product. Economies of scope are achieved when the total cost of producing multiple products together is less than the sum of producing each product independently. This production efficiency is primarily possible due to sharing common resources across the different types of outputs. This includes skilled labor, an efficient managerial team, or advanced technologies that...

Economies of Scale

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2024

A firm may experience economies of scale in the long run. This occurs when a firm's output increases, but its total costs increase at a slower rate. For example, the firm may spend only 50 percent more in total cost to double the level of output. This means that the long run average cost decreases. This effect is illustrated by the downward slope of the long-run average cost curve, indicating that larger production capacity enables a firm to become more cost-efficient. Several reasons could...

Piaget's Conservation Task and the Influence of Task Demands

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2023

Source: Laboratories of Judith Danovitch and Nicholaus Noles—University of Louisville Jean Piaget was a pioneer in the field of developmental psychology, and his theory of cognitive development is one of the most well-known psychological theories. At the heart of Piaget’s theory is the idea that children’s ways of thinking change over the course of childhood. Piaget provided evidence for these changes by comparing how children of different ages responded to questions and problems that he...

Research

JoVE Journal - Bioengineering

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

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2025

This protocol presents a scalable method for converting food waste into biodegradable polyhydroxyalkanoate (PHA) bioplastics. It utilizes arrested anaerobic digestion for food waste pretreatment, halophilic microbial fermentation for PHA biosynthesis, and a chemical-free downstream process for PHA recovery.

Research

JoVE Journal - Behavior
Free Sample

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

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Cited by 26 •

2017

Working memory predicts a significant amount of variance for a variety of cognitive tasks, including speaking, reading, and writing. However, few tools are available to assess working memory in children. We present an innovative, computer-based battery that comprehensively assesses different components of working memory in school-age children.

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