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4.5.1 The Achieven€ posltesl
The studenb were exposed i,o a posl-test, which ws m
achievment one. The codent ofthe iledl3 ofthe test wa! based on
lhe objectives of the selecred unjt. These objectives 5re usuallv
slated iD th€ b€eirnioS of @h rmit ss lhe case oD Englsh fot
Ymen tenbook (old onc). Somdimes dtese obj€ctives e
indicaled in the i€acbe.'s guide or lhcy @ sirplv be lrdeFiood
iom the co ent table s the c.s€ with th€ n€w l@hing lD.tbook
(thz Ge.nt)lse!. zweld'x 31.
The post-test wa! given to bod! the operif<strong>tn</strong>tal dd th€
control grolps. Thougb $e nethod of teachin8 of lhe two grcups
was difrerenl. the test nas the sme becaue the content wa3 lhe
same. TIle pltrPose of lhe iest wa! to neasure th€ cllange o.
progress that occuned to lhe experimental Srorp dd of couse
compare tlEt change to the control grouPs'.
4.5.2 T[. Qu6tiorD.irc:
The qwstionnaire, is a very effective means for colt€cting
dlta esp€cially i! a situalion where othns med su.h a i<strong>rt</strong>eroews
are not only difficult lo use but also <strong>tt</strong>une cosuing The PurPose
of this quesnomne was to 6nd out about the students' ectid to
rhe lemer-centercd experiencc. Only the ex!€rimental groups look
tlle quetionnaire. It ws given to the stude<strong>tt</strong>s soon aier the
selecl,ed teaching unit was finish€d atd just afrer l!3 Post-test wd
4.53 The Cbsmr Obccrwtio!!
Obsenalion is the third tool of data coletion. It aiDs at
providiig i0ore iDmdiar6 aDd .cc@le &ta of the oeqin€llt.
Observarions werc Ned duing and afr€r lesns. Thev werg
urs<strong>tn</strong>Dtwd Bpe of obswatioN b€caue the fltu€ of the it@! lo
b€ observed wa not id€Dlified b€forc hand, but mther sPontaneous