Where the theory comes from
Self-monitoring theory was proposed by American psychologist Mark Snyder in 1974, based on the observation that people vary in how closely they watch and adjust their own behavior to fit social situations. Snyder developed the Self-Monitoring Scale to measure this tendency and used it to describe people as high or low self-monitors depending on their score.
How the difference plays out socially and in relationships
High self-monitors tend to bond quickly with new people and adapt easily across different groups, which tends to serve them well for building a wide network of contacts, while low self-monitors tend to build fewer but deeper, more consistent relationships. Research on romantic relationships also suggests high self-monitors tend to weight situational fit (does this person suit this particular occasion) more heavily, while low self-monitors weight a partner's underlying personality and values more heavily. Neither style is objectively better -- they're just different strategies suited to different situations.
Frequently Asked Questions
Does being a high self-monitor mean someone is fake?
No. Self-monitoring is a separate dimension from sincerity. A high self-monitor is adjusting their style of expression to fit the situation, not necessarily deceiving anyone or lacking genuine feelings.
Can self-monitoring tendencies change with practice?
It's generally treated as a tendency that can shift somewhat with conscious effort rather than a completely fixed trait. Rather than trying to force yourself into the opposite style, though, it's usually more realistic to recognize the situations where your natural tendency already works to your advantage.