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Psychology- chapter2
| Question | Answer |
|---|---|
| Median | Point that divides a distribution of scores in half when those scores are arranged in order from lowest to highest. |
| Meta-analysis | Statistical procedure for combining the results of different studies that examine the same topic. |
| Mode | Most frequently occurring score in a distribution. |
| Naturalistic Observation | A method in which the researcher observes behavior in a natural setting and tries to avoid influencing the participants being observed. |
| Negative Correlation | Higher scores on one variable are associated with lower scores on a second variable. |
| Operational Definition | Defines a variable in terms of the specific procedures used to produce or measure it. |
| Placebo | A substance that has no pharmacological effect. |
| Placebo Effect | People receiving a treatment show a change in behavior because of their expectations, bot because the treatment itself had any specific benefit. |
| Population | All the individuals that we are interested in drawing a conclusion about. |
| Positive Correlation | Higher scores on one variable are associated with higher scores on a second variable. |
| Random Assignment | A procedure in which participant has an equal likelihood of being assigned to any one group within an experiment. |
| Random Sampling | Every member of the population has an equal probability of being chosen to participate in the survey. |
| Range | Difference between the highest and lowest scores in a distribution. |
| Replication | Process of repeating a study to determine whether the original findings can be duplicated. |
| Representative Sample | Reflects the important characteristics of the population. |
| Sample | A subset of individual individuals drawn from the larger population |
| Scatterplot | A graph used to examine correlational data; each pair of scores on variable X and variable Y are plotted as a single point. |
| Standard Deviation | How much each score in the distribution differs from the mean. |
| Statistical Significance | Very unlikely that a particular finding occurred by chance alone. |
| Survey Research | Information about a topic is obtained by administering questionnaires or interviews to many people. |
| Theory | Set of formal statements that explains how and why certain events are related to one another. |
| Unobtrusive Measures | Record behavior in a way that keeps participants unaware that are being observed. |
| Variable | Any characteristic or factor that can vary. |
Created by:
Akile6
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