Mr. Lehman wanted to know whether or not his studentswould do better on a quiz if he promised them candy. He went to the library and read several studies about the effect of giving food to lab animals. He found out that if animals were given food as a reward for doing something, they usually did better the more reward they were given. He guessed that the more candy that his students were promised, the better they would do on the quiz. He had all of his classes participate in the experiment. There were four groups. Each group had the same amount of boys and girls, they were all given the same quiz, they were all the sameage, the same ability, and they were all from the samebackground. The first group was not promised any candy if they did well on the quiz. The second group was promised 1candy bar if they did well on the quiz. The third groups was promised 2 candy bars if they did well on the quiz. The fourth group was promised 3 candy bars if they did well on the quiz. See the data table below for the results of this experiment:
Group
# Promised Candy Bars
Test Average
1
0
70%
2
1
80%
3
2
90%
4
3
95%
Complete each of the following:
Identify the hypothesis: Kids will do better on tests if they recieve candy as a reward for doing good.
Identify the independent variable: amount of candy bars
Identify the dependent variable: students grades
Identify the other variables Mr. Lehman needs to consider/control during this experiment: kind of candy bar, size of candy bar, size of the students, what time of day, length of the test, the age of the candy bar, the amount of sleep they receive, how much food did they eat before, what subject is the test on, being observed by a teacher or not, size of the room ( someone may be closterfobic ), if the children like candy bars.
Identify the control group in this experiment: the students not receiving candy bars
Identify the experimental group(s): the students receiving the candy bars
What conclusions might be drawn from this data? the kids that received the most amount of candy bars did the best on the test.
What recommendations might you suggest for further study or for improvement? the length of the test maybe could be longer or shorter. Giving the kids the same amount of food before the test. The kids health. The mood of the kids. the temperature of the room ( the room temperature may affect how active the kids are ).
Mr. Lehman wanted to know whether or not his students would do better on a quiz if he promised them candy. He went to the library and read several studies about the effect of giving food to lab animals. He found out that if animals were given food as a reward for doing something, they usually did better the more reward they were given. He guessed that the more candy that his students were promised, the better they would do on the quiz. He had all of his classes participate in the experiment. There were four groups. Each group had the same amount of boys and girls, they were all given the same quiz, they were all the same age, the same ability, and they were all from the same background. The first group was not promised any candy if they did well on the quiz. The second group was promised 1 candy bar if they did well on the quiz. The third groups was promised 2 candy bars if they did well on the quiz. The fourth group was promised 3 candy bars if they did well on the quiz. See the data table below for the results of this experiment:
Complete each of the following: