Direction: Given a sample experiment, Identify the dependent & independent variable of the experiment.
•Experiment:
-In an experimental study looking at classical music exposure and reading ability in children, the researcher divided the children into two groups (Groups A and B). In Group A, the children listened to Mozart for one hour every day for one month. In Group B, parents were instructed to refrain from playing classical music around the child for one month. At the end of the month, all children were given a reading comprehension test. Those who listened to Mozart daily (Group A) scored significantly higher on the reading test.
•Questions about the experiment:
( Note: Read the direction before answering the following questions )
1.What is the independent variable in the experiment?
2.What is the dependent variable in the experiment?
3.Give at least 1 extraneous variable in the experiment.
•Experiment:
-In an experimental study looking at classical music exposure and reading ability in children, the researcher divided the children into two groups (Groups A and B). In Group A, the children listened to Mozart for one hour every day for one month. In Group B, parents were instructed to refrain from playing classical music around the child for one month. At the end of the month, all children were given a reading comprehension test. Those who listened to Mozart daily (Group A) scored significantly higher on the reading test.
•Questions about the experiment:
( Note: Read the direction before answering the following questions )
1.What is the independent variable in the experiment?
2.What is the dependent variable in the experiment?
3.Give at least 1 extraneous variable in the experiment.
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Answers & Comments
1. Independent variables (IV): These are the factors or conditions that you manipulate in an experiment. Your hypothesis is that this variable causes a direct effect on the dependent variable. Dependent variables (DV): These are the factor that you observe or measure.
2. The dependent variable is the variable that is being measured or tested in an experiment. 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores, since that is what is being measured.
3. What is an example of an extraneous variable?
For example, if a participant is taking a test in a chilly room, the temperature would be considered an extraneous variable. Some participants may not be affected by the cold, but others might be distracted or annoyed by the temperature of the room.