This research was aimed to know Grammar and Critical T hinking Effects
towards Student’s Writing Skill at SMA Ksatrya in Central Jakarta. The research
was conducted in Central Jakarta, SMA Ksatrya, Cempaka Putih Barat with 100
samples. Data collection techniques were in the form of questionnaire (tests).
First free variable was grammar (X1),. The test form was the questionnaire
(multiple choices) of 50 questions designed by the researcher. The material
tested adjusts for the theoretical frameworks i.e. tenses in sentences and the
need for the research. Second free variable was critical thinking (X2), the
test form of the questionnaire (multiple choice) of 50 questions designed by
own researcher tested. The form of material tested was designed by the
researcher that appropriates theoretical frame work and the need for the
research.The third variable is the dependent variable in the form of Writing Skills (Y). Based on
collecting of data, processing and testing of hypotheses, it can be concluded
that Grammar learned by the students had effect on the student’s writing skill,
this was evidenced by t count = 0,654 and Sig. as big as 0,041 <0,05,
Critical thinking ability had effect on the student’s Writing Skill , this was
evidence by t count = 0,446 and Sig. as big as 0,035 < 0,05. Grammar and
critical thinking ability had effects on the student’s writing skill. This was
evidence of the value both independent variables was f count = 43, 765 and sig
level at 0,045<0,05. So, there was any effects of Grammar and Critical
Thinking Effects towards Student’s Writing Skill.
Peer Review GRAMMAR AND CRITICAL THINKING EFFECTS TOWARDS STUDENT’S WRITING SKILL AT SMK KSATRYA IN CENTRAL JAKARTA