This article presents a meta-analysis of the effects of involvement on persuasion, distinguishing three types of involvement: value-relevant, outcome-relevant, and impression-relevant. The authors define involvement as a motivational state induced by an association between an activated attitude and the self-concept. Value-relevant involvement is linked to enduring values, outcome-relevant involvement is linked to the ability to attain desirable outcomes, and impression-relevant involvement is linked to the impression one makes on others. The findings show that with value-relevant involvement, high-involvement subjects were less persuaded than low-involvement subjects. With outcome-relevant involvement, high-involvement subjects were more persuaded by strong arguments and less persuaded by weak arguments. With impression-relevant involvement, high-involvement subjects were slightly less persuaded than low-involvement subjects. The authors conducted a meta-analysis of studies on the effects of involvement on persuasion, finding that the effects of involvement on persuasion varied depending on the type of involvement. The results indicate that involvement increases the motivation to process information about the issue discussed in a message. However, the effects of involvement on persuasion depend on the strength of the arguments used in the message. Strong arguments lead to greater persuasion when the message is outcome-relevant, while weak arguments lead to less persuasion. The authors also discuss the differences between the three types of involvement and their effects on persuasion. They argue that the term "involvement" is too broad and that the three types of involvement should be distinguished at a conceptual level. The authors conclude that the effects of involvement on persuasion are complex and depend on the type of involvement and the strength of the arguments used in the message.This article presents a meta-analysis of the effects of involvement on persuasion, distinguishing three types of involvement: value-relevant, outcome-relevant, and impression-relevant. The authors define involvement as a motivational state induced by an association between an activated attitude and the self-concept. Value-relevant involvement is linked to enduring values, outcome-relevant involvement is linked to the ability to attain desirable outcomes, and impression-relevant involvement is linked to the impression one makes on others. The findings show that with value-relevant involvement, high-involvement subjects were less persuaded than low-involvement subjects. With outcome-relevant involvement, high-involvement subjects were more persuaded by strong arguments and less persuaded by weak arguments. With impression-relevant involvement, high-involvement subjects were slightly less persuaded than low-involvement subjects. The authors conducted a meta-analysis of studies on the effects of involvement on persuasion, finding that the effects of involvement on persuasion varied depending on the type of involvement. The results indicate that involvement increases the motivation to process information about the issue discussed in a message. However, the effects of involvement on persuasion depend on the strength of the arguments used in the message. Strong arguments lead to greater persuasion when the message is outcome-relevant, while weak arguments lead to less persuasion. The authors also discuss the differences between the three types of involvement and their effects on persuasion. They argue that the term "involvement" is too broad and that the three types of involvement should be distinguished at a conceptual level. The authors conclude that the effects of involvement on persuasion are complex and depend on the type of involvement and the strength of the arguments used in the message.