Your independent variable is what is being directly manipulated by the researcher. In this case it would be your study method. Your dependent variable is dependent on the independent variable. If your study is sound, your dependent variable will change as your independent variable changes. So, your dependent variable would be, in this case, the grade on your exam!
Experiments have long been the method of choice in psychology. However, the experimental approach does have its limitations. Describe these limitations and explain why many psychologists have called for more field research
One limitation of experiments is experimenter effects. That is, if subjects know whether they are in the experimental or control group their expectations may affect the results.
A researcher’s expectations can also influence the results of an experiment.
If participants are not representative of the larger population of interest, the results cannot be generalized.
Controlled experiments may result in artificial situations in which behavior is not normal and cannot be generalized to the real world.
Field research can at least partially overcome this last objection.
How would you respond if a person told you that salt intake caused hypertension because a research study found 0.80 correlation between these two variables?
It would depend on how much salt a person consumes..
Excessive salt consumption can also create difficulties for the kidneys by narrowing the renal artery, restricting the flow of blood. As a result, the kidneys secrete hormones called renin and angiotensin, which increase pressure to peripheral arteries, causing hypertension
To most people, the word psychologist conjures