MLIM 6025 Task 6  –  Experimental Research Produced by: Eliza Yu Clara Kwan Lucile Lee Phoebe Leung July 2007
Proposed Study 1 <ul><li>Research Question : to study the effectiveness of parents’ guidance on healthy diet by comparing ...
<ul><li>Population :  </li></ul><ul><li>Form 2 students, boys and girls, from three local secondary schools, who fit the f...
The Experimental Process  <ul><li>Randomly select 30 students  </li></ul><ul><li>Random assignment ( R ) of students to ex...
The Experimental Process  <ul><li>Parents of the experimental group receive a DVD on how to provide guidance of healthy di...
Experimental Design: <ul><li>The pretest-posttest control group design </li></ul><ul><li>R   O X 1 O </li></ul><ul><li>R  ...
<ul><li>Measurement :   </li></ul><ul><li>T test : the mean score of BMI of both groups will be measured.   </li></ul><ul>...
Proposed Study 2 <ul><li>Is there any relationship between the use of discussion forum and students’ learning? </li></ul><...
How could data for the variables be collected?  <ul><li>Population :   </li></ul><ul><li>Form 4 students of a local second...
The Experimental Process:  <ul><li>Randomly select 60 students with 1:1 boys to girls ratio. </li></ul><ul><li>Randomly as...
Experimental Design: <ul><li>The pretest-posttest control group design </li></ul><ul><li>R   O X 1 O </li></ul><ul><li>R  ...
<ul><li>Instruments : 2 kinds of data are to be collected </li></ul><ul><li>results of the pre-test of a science subject <...
 
 
How to contribute to improve the education/learning & teaching?  <ul><li>makes educators think seriously to actively use d...
Reference <ul><li>Research Methods Knowledge Base ( http:// www.socialresearchmethods.net/kb/stat_t.php ) </li></ul><ul><l...
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Experimental Final 11 Jul

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Transcript of "Experimental Final 11 Jul"

  1. 1. MLIM 6025 Task 6 – Experimental Research Produced by: Eliza Yu Clara Kwan Lucile Lee Phoebe Leung July 2007
  2. 2. Proposed Study 1 <ul><li>Research Question : to study the effectiveness of parents’ guidance on healthy diet by comparing the BMI improvement of students who receive parents’ education on the healthy diet vs the existing students who receive normal education on the healthy diet. </li></ul><ul><li>H 0 : (Null Hypothesis) Mean of BMI of the students under parent’s guidance on healthy diet is the same as the mean of BMI of the students under normal education on healthy diet. </li></ul><ul><li>H a : (Alternate Hypothesis) Mean of BMI of the students under parent’s guidance on healthy diet will be different from the mean of BMI of the students under normal education on healthy diet. </li></ul>
  3. 3. <ul><li>Population : </li></ul><ul><li>Form 2 students, boys and girls, from three local secondary schools, who fit the following criteria </li></ul><ul><li>1. Parents are willing to join the research </li></ul><ul><li>2. willing to let the teachers take their BMI in P.E. lessons. </li></ul><ul><li>Sampling method : </li></ul><ul><li>Random sampling </li></ul><ul><li>Equal number of boys and girls </li></ul><ul><li>Sample size : </li></ul><ul><li>a total of 90 students from three schools </li></ul>How could data for the variables be collected?
  4. 4. The Experimental Process <ul><li>Randomly select 30 students </li></ul><ul><li>Random assignment ( R ) of students to experimental group and control group </li></ul><ul><li>Use of a pre-test ( O ) - BMI* of all F.2 students from the three schools is to be collected. </li></ul><ul><li>Independent variable : Parental Guidance </li></ul><ul><li>Dependent variable : Health diet concept </li></ul><ul><li>Measured by : BMI </li></ul><ul><li>* Body Mass Index : which is the measurement of health in a formula: Body weight (Kg) / Height 2 (cm 2 ) </li></ul>
  5. 5. The Experimental Process <ul><li>Parents of the experimental group receive a DVD on how to provide guidance of healthy diet to teenage children. </li></ul><ul><li>Parents show the DVD clippings to their children everyday for 15 minutes before dinner for two months. There should be 60 clippings of videos in total (Treatment X 1 ). </li></ul><ul><li>For the second (control) group, the students will just receive the normal education on healthy diet at school (Treatment X 2 ). </li></ul><ul><li>After two months, perform a post-test ( O ), and compare the measurement of BMI of the two group of students. </li></ul>
  6. 6. Experimental Design: <ul><li>The pretest-posttest control group design </li></ul><ul><li>R O X 1 O </li></ul><ul><li>R O X 2 O </li></ul>
  7. 7. <ul><li>Measurement : </li></ul><ul><li>T test : the mean score of BMI of both groups will be measured. </li></ul><ul><li>H 0 (null hypothesis) will be rejected if the p < 0.05 in level of significance . </li></ul><ul><li>How to contribute to improvements on the education/learning & teaching? </li></ul><ul><li>helps to identify if parents’ involvement will help teenagers to focus on the importance of a healthy diet. </li></ul><ul><li>Health Department or the school can design effective ways to promote healthy diet to teenagers. </li></ul>
  8. 8. Proposed Study 2 <ul><li>Is there any relationship between the use of discussion forum and students’ learning? </li></ul><ul><li>H 0 : (Null hypothesis) there is no relationship between the use of discussion forum and student learning </li></ul><ul><li>H a : (Alternate hypothesis) there is relationship between the use of discussion forum and student learning </li></ul><ul><li>Independent variable : discussion forum </li></ul><ul><li>Dependent variable : students’ learning performance </li></ul><ul><li>Measurement : test results of a science subject </li></ul>
  9. 9. How could data for the variables be collected? <ul><li>Population : </li></ul><ul><li>Form 4 students of a local secondary school </li></ul><ul><li>Sampling method : </li></ul><ul><li>Random Sampling </li></ul><ul><li>Sample size : </li></ul><ul><li>60 students </li></ul>
  10. 10. The Experimental Process: <ul><li>Randomly select 60 students with 1:1 boys to girls ratio. </li></ul><ul><li>Randomly assign ( R ) them to two different groups. </li></ul><ul><li>The experimental group are given new account to access discussion forum on the science subject online (Treatment X1 ). </li></ul><ul><li>The other group (control group) does not have that account (i.e. without the treatment of discussion forum (i.e. Treatment X 2)). </li></ul><ul><li>Carry out pre-test ( O ) on a particular science subject (e.g. mathematics) and collect the results. </li></ul><ul><li>At the end of the second term, carry out the same post-test ( O ) on the same subject and collect the results. </li></ul><ul><li>Compare the results of the two groups. </li></ul>
  11. 11. Experimental Design: <ul><li>The pretest-posttest control group design </li></ul><ul><li>R O X 1 O </li></ul><ul><li>R O X 2 O </li></ul>
  12. 12. <ul><li>Instruments : 2 kinds of data are to be collected </li></ul><ul><li>results of the pre-test of a science subject </li></ul><ul><li>results of the post-test of a science subject </li></ul><ul><li>Measurement : </li></ul><ul><li>Uses T test as the measurement </li></ul><ul><li>The mean score of the pretest and posttest of the science project will be measured. With the help of statistical software, the p value of T test will be calculated </li></ul><ul><li>H 0 (null hypothesis) will be rejected if the p <0.05 in level of significance </li></ul>
  13. 15. How to contribute to improve the education/learning & teaching? <ul><li>makes educators think seriously to actively use discussion forum to facilitate students’ learning. </li></ul><ul><li>room for future research, e.g. whether discussion forums are useful for students’ learning in all subjects. </li></ul>
  14. 16. Reference <ul><li>Research Methods Knowledge Base ( http:// www.socialresearchmethods.net/kb/stat_t.php ) </li></ul><ul><li>Gay, L. R., Mills, G. E., & Airasian, P. (2006). Educational Research: Competencies for Analysis and Applications. Upper Saddle River, N.J. : Pearson/Merrill Prentice Hall </li></ul><ul><li>Cohen, L., Mansion, L., & Morrison, K. (2000). Research methods in education. London. RoutledgeFalmer </li></ul>
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