Availability, salience and vividness
Encyclopedia
Availability, salience and vividness are three terms which refer to very similar things in social psychology
Social psychology
Social psychology is the scientific study of how people's thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others. By this definition, scientific refers to the empirical method of investigation. The terms thoughts, feelings, and behaviors include all...

 but have slightly different meanings. They may actually all refer to the same underlying concept, and they positively influence one another, but they are each used consistently in different theoretical contexts.
Availability
Availability heuristic
The availability heuristic is a phenomenon in which people predict the frequency of an event, or a proportion within a population, based on how easily an example can be brought to mind....

refers to how likely or probable something appears, in probability estimation.

Salience
Salience
Salience or saliency may refer to:* Salience , the state or quality of an item that stands out relative to neighboring items* Salience , relative importance or prominence of a piece of a sign...

refers to the likelihood that something will appear causal, in attribution theory.

Vividness refers to how easily recalled and convincing something is, in persuasion
Persuasion
Persuasion is a form of social influence. It is the process of guiding or bringing oneself or another toward the adoption of an idea, attitude, or action by rational and symbolic means.- Methods :...

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