Handout 1-4
Name that Design
Purpose: To ascertain students understanding of research designs, IVs, & DVs.
Instructions: This is a group activity that you will start in class and complete at home. For each of the following, note, whether the research design used is an experiment, a quasi-experiment, or a correlational approach and why. If a study is an experiment, identify the independent variable and the dependent variable. Please type your answers in complete sentences.
1. To assess the effect of caffeine on persistence researchers assign their participants to a group that gets a non-caffeinated beverage or a group with a caffeinated beverage. They measure how much time the participants spend on a difficult puzzle.
2. To
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8. In exploring the certainty with which people hold their beliefs a researcher proposes that those with more information about the topic will be more certain about their belief about that topic. Half of the participants are given 20 facts about a topic and are asked about their belief about that topic. The other half of the participants are given 5 facts about a topic and are asked about the strength of their belief about that topic.
assignment 2 makeup
9/9/10
NAME THAT DESIGN
1) This is an experiment because they are manipulating the amount of caffeine given to the participants. The dependant variable is the time spent on the puzzle. The independent variable is the caffeine.
2) This is a correlation approach because there is no actual manipulation of the independent variable; they are just looking at a naturally occurring event.
3) This is also a correlation approach because there is no actual manipulation of the variables.
4) This is a quasi-experiment because they selected variables so they cannot manipulate the outcome.
5) This is also a quasi-experiment because they selected the variables but they can’t really control the outcome of the experiment.
6) This is an experiment because it is in a controlled environment where the variables and the situation are manipulated. The dependant variable is the preference of the participants. The
The experimental method would allow us to observe the firsthand effect the sugar has on young children. However, this method would require the parents to give us legal consent or if it is ethically right the give children the sugar. To set up the experiment we would separate the kids into three random groups. The singular control group will not be receiving sugar while the other two do. Of the two separate experimental groups one will receive double the amount of sugar than the other. Then we assign each group to do the same task which requires their attention. The independent variable is the amount of sugar given to each group. The dependent variable is how the sugar affects the children’s attention.
3.) In your opinion, how should the data be used that is obtained from an unethical experiment and how can we prevent this from happening again?
This study was an experimental one, as opposed to a correlational study. In experimental studies, a variable is changed to see the effect it has
She specifically uses a "variable" in her experiment in this specific case. She continues to tell the students in her exercise that this is how the system works, and we can't beat it unless we show them in 1st person how it feels like to be treated like that. This experiment can be seen as both theory or approach to research because for theory, she does nothing physically to the students, only verbally which effects them mentally. Describing why certain things happen for reason, for example if a colored person were to talk back or not show any respect to a "white" or "blue-eyed" color person, they would sometimes be killed or tortured by the whites, as she explained. She relates how society is now ( the time she did the experiment) and how it was when she was 13, and she says things were a lot better when she was 13.
The researchers analyzed the data they collected as if it were (d) experimental because it was a randomized trial using a control group and an experimental group where the experimental group was administered an empowerment program and the results of the two groups compared.
3.I believe that the research method that they used was experiment method, because allow us to see cause and effect.
20. Is the type of design used appropriate? This type of design is appropriate because non-experimental research looks at prediction and causality and does not use manipulation of variables. The researcher studies what naturally occurs.
The concepts of control are consistent with this kind of research, as the researcher does not incorporate randomization into the study, nor does she manipulate the independent variables.
The hypothesis was correct. The effects of caffeine shortened the reaction time in all of our test subjects.
This experiment was conducted to show what type of flour raises a cake the highest. I predicted that if you compare all-purpose, organic, and bread flour then organic flour will raise the highest because of the amount of protein in organic flour. The independent variable in this experiment would be the flour, it is what is changing in the experiment. Therefore, the cake is the dependent variable, the variable that I measured in the experiment. Things I made sure did not change was everything except the flour, that’s important because every ingredient has a key thing the help the cake, whether it’s cinnamon or sugar or vanilla, it’s all important. Important materials in this experiment is all-purpose, organic, and bread flour, cake recipe,
The question that was answered in this experiment was “ How does drinking different beverages affect exercise performance?” The hypothesis was “If a person that drinks liquid other than water before a run, then there will be an increase in performance.” Some control variables that were used in the experiment were, the amount of liquid per person, the same brands of beverages for each test, and the distance run. The independent is the beverage consumed and the dependent variable was each participant's performance. The control group was water, because it is most widely used and the experimental groups were the other liquids, milk and powerade. To test the participants, each participant is given 8 ounces of the beverage given, then
This experiment studied the effects of caffeine on the reaction time of a number of students. It was done with 12 individuals who all selected their own source of caffeine to use for the testing. The three main caffeine sources were V energy drink, coffee and red bull. The reaction times of these students were recorded before and after drinking the caffeine in order to obtain results on the effect that caffeine had on the individual. This was done by using an online reaction test where students were to click on a button each time the green traffic light appeared. The results indicated significant differences in the reaction times of the students’ pre and post caffeine intake. Therefore, the experiment showed that caffeine did have an impact on the reaction time of the student after consuming caffeine. This report allows comparison of the mean scores of the 12 groups using tables and graphs to clearly indicate the differentiation of each result.
The independent variable in the experiment was the types and number of jams displayed. And the dependent variable was the motivation to make the choice of which jam to purchase.
5d. The study tries to control extraneous variables by randomizing the subjects into groups A and B by a randomized computer generator. This was done because subjects were their own
What will the experimenters do? 7. Who will be the participants and how will you measure their responses? 1. INTRODUCTION