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Eye-contact is a prominent Non-verbal cue in any Dyadic interaction and can be easily observed and measured. Argyle (1969) has postulated a relationship with Intimacy and Distance, Kendon (1967) described its expressive and regulatory function in conversation and Exline et al. (1965 and 1967) have related it to other variables, e.g. sex, dependency and affiliative needs.
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Hinchliffe et al. (1971) studied this question.
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