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Asia-Pacific Forum
on Science Learning and Teaching, Volume 13, Issue 1, Article 14 (Jun., 2012) |
The two instruments were found valid both in face and content. The Physics Content Coverage Rating Scale (PCCRS) and Physics Achievement Test (PAT) was designed in line with content of SSII curriculum and given to four experts. They include one lecturer in science education, two in measurement and evaluation and one in physics department. While the experts in science education and physics worked to ensure the validity of the content, the experts in measurement and evaluation ensured the face validity. All necessary corrections and suggestions were taken into consideration in the final preparation of the instruments. The reliability of PCCRS and PAT were established. PCCRS satisfied parallel form of reliability with r = 0.67 while PAT also satisfied parallel form of reliability with r= 0.72 using the Pearson Product Moment Correlation coefficient. The instruments were found reliable and then administered.
The Physics content coverage rating scale (PCCRS) was scored as follows; Total covered content = 2, Partial covered content = 1; and contents not taught = 0. The Physics rating scale had a total of 89 concepts under considerations which amounts to a maximum of 178 points. The level of covered contents was expressed in simple percentage. Also, the t- test of differences was employed to test the hypotheses formulated.
