Discussion The Relationship Between Intelligence Quotient (IQ) and Students' Achievement on Extensive Reading
                                                                                be  made  and  distributed  by  the  professional  psychologists  or  an  institution.  The writer could not arrange and distribute a set of IQ test by herself. Then, the writer
thought  to  use  IQ  test  online,  but  the  research  advisor  did  not  recommend  it. Later, the writer tried to ask some psychologists and institutions. As a result, the
writer cooperate with Psychology Service Centre of UIN Jakarta —usually called
Pusat Layanan Psikologi PLP to hold IQ test for the students. Second, the number of sample in this research was smaller than the writer
had  expected.  The  writer  got  a  little  difficulties  to  gather  samples  of  research  in order  to  have  the  IQ  test.  Actually,  the  samples  of  research  need  to  have  the  IQ
test  in  one-time  and  also  come  to  the  PLP  institution.  It  was  rather  difficult  to adjust their schedule in order to have the IQ test itself. In this case, the writer need
to  contact  them one by  one. As a  result, the writer could  schedule the  IQ test in one-time.  However,  in  the  day  of  implementation  of  IQ  test,  there  were  some
students  who  canceled  to  be  the  sample  of  research  because  of  some  reasons. There  were  students  who  were  sick  and  also  having  some  urgent  things  that
obstruct them to come to the PLP institution.
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