Abstract
The purpose of this study was to investigate in a supposed unreasonable dyadic hypothetical interpersonal conflict situation; (1) The effects of age, sex and interaction with another on interpersonal negotiation strategy; (2) Change of the effects of interaction with another on interpersonal negotiation strategy by sex and popularity. Two hundred thirty eight elementary school children, 2nd, 4th and 6th graders, were investigated by means of an interview and a questionnaire. The results of the investigation indicated that in the hypothetical unreasonable conflict situation; (1) Level of interpersonal negotiation strategy was higher in older children; (2) Level of interpersonal negotiation strategy was higher in girls; (3) Level of interpersonal negotiation strategy of pre-interaction with another was higher than one of post-interaction with another; (4) High popular children's level of interpersonal negotiation strategy was higher than low popular children's one in spite of interaction with another; (5) In both high popular children and low popular children, there was no difference on level of interpersonal negotiation strategy of pre-interaction and post-interaction with another.
