PSYCH 100A Lecture Notes - Lecture 2: Major Depressive Disorder
Document Summary
1st study - texting behavior of college students. What are the social norms involving texting: when is it okay to text people. Populations and samples: population represents all the possible people we are interested in studying. How applicable is it to use this sample: we want a conclusion about a broader amount of people, but we just get. You have more of something: continuous variables(interval and ratio scales, numeric, continuous is something numeric, responses are numeric and approximate a number line. In psychology, numeric variables are not truly continuous: separate people by amount, not categories/bins. Link between scale and analysis: we can average text checks but not the average of gender, the mean is inappropriate for many categorical variables. In dsm, clinical depression has a huge list of symptoms: so, multiple-item scales are used by researchers to routinely measure complicated psychology constructs with multiple items that tap into the same theme.
