1. The Effect of Science Writing Heuristic (SWH) Approach to Students Critical Thinking Skills Niphon Chanlen Science Education Prof. Brian Hand

2. What is SWH? Science-inquiry approach Integrating literacy into science classroom Focusing on claim and evidence, and argumentation

3. Cornell Critical Thinking Test “Critical thinking is reasonable and reflective thinking focused on deciding what to believe or do” (Ennis, Millman and Tomko, 2005) 5 Subscales Induction Deduction Observation Credibility Assumption Content independent test/ Score: 0-76

4. Procedure Experiment group The SWH professional development –(Pre) The Cornell Critical Thinking Tests –Baseline Test –ITBS Test –Implementing the SWH approach –(Post) The Cornell Critical Thinking Tests

5. Procedure Control group –(Pre) The Cornell Critical Thinking Tests –ITBS Test –Implementing the any approach –(Post) The Cornell Critical Thinking Tests

6. Participants SWH (N)Control (N) Teacher116 Student300 (5 th -6 th )200 (5 th -8 th )

7. Data GroupPre-CTPost-CT SWH Control GroupPre-CTPost-CT SWH Control Year 1Year 2 GroupPre-CTPost-CTDelayed-Post CT SWH-SWH Control-Control SWH-Control Year 1-2

8. Goals Writing an article about the effect of the SWH approach to the critical thinking skills Possibility of future statistical analysis

9. Statistical Analysis Plan Split-plot ANOVA : – main effect of group –main effect of time (pre&post) –Interaction between group and time

10. Level of analysis –Overall total –Subgroup IEP SES Gender

11. Result

12. Cornell Critical Thinking Test Group Year 1Year 2 Pre-test (SD)Post-test (SD)Pre-test (SD)Post-test (SD) Treatment40.43 (7.28)46.31 (7.54)41.75 (7.74)46.65 (7.80) Control42.10 (8.39)45.22 (8.65)43.52 (8.47)45.11 (8.55)

13. Year 1Year 2 SWH0.790.63 Control0.370.19 Cornell Critical Thinking Test : Effect Size