case study - would be the research method used to study very rare conditions, survey - a researcher selects a group of respondents and gives them a questionnaire in order to collect data on a specific disorder, experiment - researchers manipulate a variable to see if there is a cause/effect relationship, observation - researchers watch the subject to gather information of their behavior, longitudinal - a type of study in which one group of subjects is followed and observed for an extended period of time, cross-sectional - a type of observational study that analyzes data from a population, or a representative subset, at a specific time, double-blind study - neither the participants nor the experimenters know who is receiving a treatment in an experiment, single-blind study - the participants are deliberately kept ignorant of either the group to which they have been assigned but the researcher knows,

Research Methods

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