GMS 401 Final: PSY FINAL NOTES.docx

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Ideally an iv is something we can manipulate and its levels are conditions to which we can randomly assign individuals. E. g. , in a controlled drug experiment, such as a clinical trial, some people receive the new treatment. And others (the control group) receive either the old treatment or a placebo. However, many issues of interest do not lend themselves to such experimental control . Impossible: randomly assigning babies to develop schizophrenia or not. Impractical: randomly assigning people to learn to prefer to use their right or left hand. Unethical: randomly assigning students to pass or fail. Lots of good research is done just by carefully measuring variables. Like keeping track of smoking and/or alcohol consumption to see if they are (co-)related with. Describes the degree and direction of a linear relationship between two variables (e. g. , height and weight) Two events are related, correlated, or associated if, (a) when one is present so is the other (contingency) and.