ABSRACT : Communication skill is very important in sending and receiving important messages to understandothers and be understood by others for peace and prosperity. Communication may also create misunderstandingand trouble Speakers therefore need to be very careful in speaking to avoid it. The school is responsible to helpavoid this. This paper tries to identify the effect of the demographic profile of the grade 11 students in ICASTetuan communicative competence.The respondents are the 49 grade 11 students in ICAS Tetuan dominated byfemale gender belonging to the Chabacano ethnic group at the age of 17-18 and majority came from the PublicSchool. The findings show away that the standard deviation of 1.087 is closed to the Mean of 3.0400 which datapoints are spread-out away that is being described as more reliable (Mahusay). Based on the table of correlationdistribution accordingly between 0-.25 there is low significance correlation. Therefore, the level of Efficiencyon Vocabulary and Grammar which is 1.087 connotes highly significant. The result is only from one schoolparticularly only the Senior High School level, the researcher then recommends to have the same study inanother school of different levels to determine the reality of the demographic effect on communicativecompetence of the young generation.
KEY WORDS: bokabularyo,gramatika,komunikasyon kakayahan,kasanayang pangkomunikatibo