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AMDM Unit 3 Vocab
| Term | Definition |
|---|---|
| Observational Study | Research in which data is collected, by observation or survey, about some characteristic of the population. |
| Experimental Study | Research in which the researcher separates participants into two or more groups, applies some sort of treatment, then compares the results. |
| Treatment | Something that researchers administer to participants in an experimental study |
| Variable of Interest | Measured result in an experimental study |
| Control Group | A group in an experimental study that does not receive a treatment |
| Placebo Effect | A phenomenon in which a person, who is receiving an inactive drug or treatment, experiences similar or the same effects as someone receiving the active drug or treatment. |
| Hypothesis | An assumption or guess |
| Population | The entire collection of items or subjects that are the focus of concern in a study. |
| Research Question | A question that states what a researcher will attempt to answer and that guides research design |
| Primary Data | Data that you collect directly. Examples are experiments, surveys, or observations |
| Secondary Data | Data that have been collected by someone else and are available to the researcher. Examples are the internet, printed materials, or historical documents. |
| Pilot Study | A small-scale version of a research plan. |
| Institutional Review Board | A group that must approve all study design plans |
| FDA | A group that performs inspections of IRB’s to ensure that they are working effectively. |
| Margin of Error | Represents a range in a study. |
| Pollsters | A group that collects data regarding elections. |
| Simple Random Sampling | The researcher chooses the sample from the entire population through a randomization method. |
| Stratified Random Sampling | The researcher separates the population into a number of strata and then takes a random sample within each strata. |
| Systematic Sampling | The researcher separates the population into evenly sized groups, randomly selects one participant in the first group and then selects the nth participant from each other group. |
| Cluster Sampling | The researcher separates the population into groups and then randomly selects some of these groups to participate. |
| Convenience Sampling | The researcher selects participants based on easy accessibility. |