Abstract:
The objective of this study is to investigate the significant effect of
Actional Function Model (AFM) on the students‟ achievement in writing and to
figure out the student‟s achievement of Actional Functional Model (AFM) on the
students‟ achievement in writing. The method for collecting data in this research
is experimental quantitative method. In accordance with the objective of the
study, it can claimed that using the Actional Functional Model has significantly
increase students' writing comprehension of descriptive texts, as demonstrated by
paired sample t-test analysis, according to the research's data analysis, findings
and discussions. The results of the paired sample t-test of the two samples are
0.000 < 0.5 which means that there is an influence from the use of the Actional
Functional Model on students' writing comprehension in descriptive text. The
magnitude of this effect is evident from the mean score Post-Test of the
Experimental Class which has improved from 62.45 to 85.30. So it can be said
that there is a significant effect in writing comprehension of descriptive texts by
using the Actional Functional Model
