5As (3ets for a. 2 pts each for b-d-9 pts total) A researcher is interested in t

Question

5As (3ets for a. 2 pts each for b-d-9 pts total) A researcher is interested in the effects of cocalne on earning A group of rats is randomly assigned to one of two solution conditions: 1) rats in the cocaine rats are taught how to through the maze in under receive cocaine, or 2) rats in the control condition receive a non-harmful saline solution. The one minute is recorded. The cocaine rats need to be reared away from the ol group rats learned run a maze, and the number of training trials needed until the rat can make it roup rats, so they are handled and taught by one experimenter, and the control group rats are handled and taught by another experimenter. The results showed that the contr how to run the maze in under one minute in fewer trials than the experimen al group. a List the three steps that we discussed in class that should be used to describe an and then use these steps to describe the independent variable in this study? b. What is the dependent variable and how is it operationalized? c. What is the notable extraneous variable/confound? d. How could the confound be fixed? PSYCH216 Exam p.6

Explanation / Answer

B. The dependent variable is the variable that is being measured in an experiment. Eg: We can check the company profits and loss.

In a psychology experiment, researchers are looking at how independent variable can cause changes in the dependent variable. The dependent variable depends on the independent variable.

When researchers make changes to the independent variable, they then measure changes to the dependent variable.The amount of studying would be the independent variable and the test scores would be the dependent variable.

In many psychology experiments, the dependent variable is often a measure of a certain aspect of a participant's behaviour. The dependent variable would test performance. It is a measure of the participants' behaviour. The independent variable is independent because the experimenters are free to vary it as they need. The dependent variable is dubbed dependent because it is thought to depend in some way on the variations of the independent variable.

C. Extraneous variable are any variables that you are not intentionally studying in your experiment or test. When you run an experiment, you have to check if one variable (the independent variable) has an effect on another variable (the dependent variable).These undesirable variables are called extraneous variables.

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