variable-ratio schedule
[ˈvɛriəbəl ˈreɪʃoʊ ˈskɛdʒuːl]
nounpl: variable-ratio schedules
esquema de razão variável
1. A reinforcement schedule in behavioral psychology where a reinforcer is delivered after a varying number of responses, with the number changing around a predetermined average.
The slot machine operates on a variable-ratio schedule, rewarding the player after an unpredictable number of pulls.
A máquina caça-níqueis funciona em um esquema de razão variável, recompensando o jogador após um número imprevisível de puxadas.
2. A schedule of reinforcement characterized by unpredictable intervals of reward that typically produces high rates of responding and strong resistance to extinction.
Researchers used a variable-ratio schedule to study how animals maintain persistent behavior patterns.
Os pesquisadores usaram um esquema de razão variável para estudar como os animais mantêm padrões de comportamento persistentes.
This is primarily a technical term used in behavioral psychology, neuroscience, and educational research. In Brazil and Portugal, it appears mainly in academic literature and professional training. The concept is widely referenced in discussions about addiction, gambling, and game design, as variable-ratio schedules are known for creating highly persistent behaviors. The term has gained popular attention in discussions about social media engagement and notification systems.
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