The aim of the research is to find out whether teaching English vocabulary
by using O-Bingo game to the fourth grade students of SDN 2 Purbalingga Lor in
the academic year 2010/2011 is effective or not.
This research was held in February until April 2011. The sample was 45
students. The writer used one group pre-test–post-test design for the method. In
collecting the data, the writer used test as an instrument.
After the writer got the result of computation, the writer compared it with
the t-table values. The result of t-test (2.4083) was greater than that of the t-table
at the df = 44, with α= 0.05 which was 2.0154. It means that teaching vocabulary
using O-Bingo game to the fourth grade students of SDN 2 Purbalingga Lor in the
academic year 2010/2011 was effective, and the hypothesis was accepted.