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Healthy Living for Children in Schools Throughout America

Healthy Living for Children in Schools Throughout America. Let’s Put An End to Childhood Obesity Midterm Project and Presentation Action Research Project Michelle Morales EDUC 7201 T Fall 2012. Table of Contents. Slide 3- Research Design Slide 4-Threats to Internal Validity

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Healthy Living for Children in Schools Throughout America

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  1. Healthy Living for Children in Schools Throughout America Let’s Put An End to Childhood Obesity Midterm Project and Presentation Action Research Project Michelle Morales EDUC 7201 T Fall 2012

  2. Table of Contents • Slide 3- Research Design • Slide 4-Threats to Internal Validity • Slide 5- Threats to External Validity • Slide 6-Data • Slide 7- Weight Before And After Intervention Graph • Slide 8-Data • Slide 9-Test Grades on the Food Pyramid Before and After Intervention Graph • Slide 10-Correaltion graph-Intervention vs. Playing in Gym • Slide 11-Correaltion graph-Junk Food vs. Report Card Grades • Slide 12- References

  3. Research Design • The pre-experimental design I am going to implement for my research is One-Group Pretest-Posttest Design. The symbolic design for this research is OXO, this mean that a single group will be pretested (O), exposed to a treatment (X), and then post-tested (O).

  4. Threats to Internal Validity • History- This can be a threat because once the child leaves the classroom there is no control what happens at home or at the park or elsewhere. • Maturation- This is a threat to my study because I am working with the middle school population and they are growing rapidly. Over a four week span I can see some of them gaining weight not necessarily because of what they are eating or not eating but because of the changes and growth going on in their body. • Testing/ Pre-test Sensitization- I can see this being a threat with my students because if they see a similar test/survey for the second time they may not take it seriously. • Statistical Regression- this might be a threat considering the participants are all different and are at different physical levels. • Differential Selection of Subject- This is a threat because my subjects are growing at a rapid pace and they will be physically different as well as mentally different from the start to the end. • Selection- Maturation Interaction- Yes this poses as a threat because my results may be skewed due to the different growing rates especially amongst the boys.

  5. Threats to External Validity • Generalizable Conditions- I think that this can be a threat because the same project can be duplicated and there may be different results. • Selection- Treatment Interaction- This is a major threat because my subjects are not random. They are all in special Ed, in the same school same class and same grade. If the selection was more random I think the results would be more reliable. • Specificity of Variables- I will try my hardest not to make this a threat and will try to make my variables operate as efficiently as possible. • Experimenter Effects- I think this will be a threat because the participants may have prior knowledge about the food pyramid or what obesity is. • Reactive Arrangements/ Participants Effects- I think this can be a threat because the children can lie on the post survey because of the placebo effect of because they feel the need to impress me and showed that they learned something.

  6. Pre-Intervention/Post Intervention Data

  7. Weight Before And After Intervention Weight Students

  8. Pre-Intervention/Post Intervention Data

  9. Test Grades on the Food Pyramid Before and After Intervention Test Scores Students

  10. Intervention vs. Playing in Gym

  11. Junk Food vs. Report Card Grades

  12. References • O’Connor-Petruso, S. (2013). Descriptive Statistics Threats to Validity [PowerPoint slides].Retrieved fromhttps://bbhosted.cuny.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_50_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_829166_1%26url%3D

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