Method
The study utilized the quasi-experimental model with a post-test control group. The two groups, one
test and the other control, were formed by unbiased assigning, and both were applied the post-test only. The
prospective teachers studying at Education Faculty, Science Education Department constituted the
population of the research, and 37 prospective teachers studying their second year at Science Education
Department constituted the sampling of the research. The application of the study was performed in the
General Biology II in the spring term of the academic year 2008-2009. 24 candidates were men and 13
candidates were women. 19 candidates participated in the control group and 18 candidates participated in
the test group. The measurement instrument called Scientific Process Skills Measurement Instrument – II
developed by Özer (2011) was used in the study.
The Scientific Process Skills Measurement Instrument – II, which is used to determine the effect of the
projects prepared by the prospective teachers on the scientific process skills, is an assessment instrument
with multiple choice and open ended questions on 11 process skills. It was, as a post-test, applied to both the
test group and the control group. In the measurement instrument, there were 28 questions in total including
13 multiple choice questions and 15 open ended questions which could be replied with short answers.