Group dd
- 1. Does Sugar Make Kids Hyper? By: Deanna Moyer and Keeley Henry
- 2. Subjects/ experimental units ● the population examined applies to all children who eat sugar ● the subjects used in this experiment will be 200 children from the ages of 5-12
- 3. Explanatory Variable The explanatory variable is if the children are given sugar or not.
- 4. Treatments Imposed Treatment 1- The kids receiving this treatment would be given a beverage with 10 teaspoons of sugar in it. Treatment B- The kids receiving this treatment would be given flavored water with no sugar.
- 5. Response Variable We would rate the level of hyperactivity in the children by using trained professionals to measure this by using a scale from 1 to 10. 1 being very little hyperactivity and 10 being a lot of hyperactivity.
- 6. Experimental Design We would use a randomized blocked matched pairs experiment. We would select 50 boys between the ages of 5-12 and select 50 girls between the ages of 5-12. We would then put the 50 boys names in one hat and 50 girls names in another hat. Next we would draw 25 boys names from the hat and 25 girls names from the other hat. They will be called group A girls, and group A boys. The first 25 boys and first 25 girls selected would receive the sugar beverage the first week. The 25 girls and 25 boys remaining would receive the flavored water with no sugar or the placebo drink. They will be called group b girls and group b boys The next week the 25 boys and 25 girls who already received the sugar treatment would receive the placebo drink The 25 boys and 25 girls who received the placebo drink the first week would then receive the sugar drink
- 7. Experimental design cont. 100 boys and girls 50 boys 50 girls Group A Boys Group B Boys Sugar Drink Placebo Drink Group A Girls group B girls Sugar Drink Placebo Drink Randomization Group A Boys Placebo Drink Group B Boys Sugar Drink Hyperactivity ratings for each treatment for both groups Group A Girls Placebo Drink group B girls Sugar Drink First Week Second Week Hyperactivity ratings for each treatment for both groups
- 8. Blocking Blocking was used by separating the boys from the girls before we randomized the treatments. We did this because there is a possibility that boys and girls level of hyperactivity may vary due to their gender.
- 9. Blinding In this experiment double blinding is used. First we will blind the children by not letting them know what treatment they have received, to reduce bias, in case they might subconsciously react to match their treatment. We will also blind the evaluators as well by not telling them what treatment the children are receiving,to also reduce bias. We blinded them since they might make their ratings of the childrens hyperactiveness based on what treatment the child received.
- 10. Concerns The concerns in this experiment is that there is lurking and confounding variables that make skew the results. Such as if the child has adhd or if they have had sugar before they went in for observation.
- 11. Experimental Design Principles Control- In our design we have control groups. During week one group b boys and group b girls receive the placebo, and they are the controlled. In week 2 group a boys and group b girls receive the placebo so they are the controlled. Randomization-There is also randomization. We use randomization after we block. We do this by putting the girls names in one hat and the boys names in the other hat and shake them both. Then we select 25 names from each hat. This is completely random because every boy and girl have the same chance of being picked in the first 25. Replication-This experiment can easily be replicated with a different set of 100 kids. It is also a must to make sure our findings is backed up by multiple other experiments so we can claim that the results are statistically significant.