Conversational interruption is regarded as utterances initiated before the completion point of the current speaker (Zimmerman & West, 1975). As a form of simultaneous talk, interruption widely occurs in natural conversations such as talk among friends and family members. Since its violation against the one-speaker-at-atime turn-taking rule proposed by Sacks, Schegloff, and Jefferson (1974), interruption has long been identified as an index of male and power dominance (Beattie, 1981; O’Reilly, 2008; Hutchby, 2008). However, interruption is not merely a sequential act but an interactional and moral evaluation by interactants and some linguistic and social parameters may have their play in how interruption is evaluated and measured. The current study aims at statistically designing a model to indicate the force of doing interruption from both linguistics variables and social variables, the former being interruption timing, interruption marker, turnconstructional units, resonance, and illocutionary force, the latter being gender, and social roles