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Psychology Unit 3
Psychology Unit 2
| Term | Definition |
|---|---|
| Dependent Variable | variable that is being measured in an experiment |
| Independent Variable | the characteristic of a psychology experiment that is manipulated or changed |
| Case Study | descriptive research approach to obtain an in-depth analysis |
| Generalizability | findings that can be generalized to things outside the lab |
| Experiment | a hypothesis being tested |
| Experimental Method | manipulating one variable to see if it'll change another variable (control group and random assignment) |
| Control Groups | the group that does not get the treatment of the experimental group |
| Hypothesis | testable prediction between variables |
| Naturalistic Observation | observing subjects in their natural enviroment |
| Survey | gathering information from an individual |
| Theory | models for understanding human thoughts, emotions, and behaviors, must describe a behavior and predict future behavior |
| Correlation Coefficient | relationship between two variables, statistical |
| Operational Definition | defining the terms that are being tested |
| Experimental Group | the group receiving the variable being tested |
| Correlation Research | determines if there is a relationship between variables |
| Random Assignment | study participants are randomly assigned to different groups, makes sure each person has the same opportunity to be in a certain group |
| Mean | also known as average |
| Median | the midpoint of a data set |
| Mode | most frequent value in a data set |
| Normal Distribution | when data values cluster towards the mean, bell-shapped in a graph |
| Double Blind Study | a study where neither the participants nor the experimenters know who is receiving a particular treatment |
| Sample | selecting a representative group from the population for a study |
| Standard Deviation | scores around the mean of a distribution |
| Statistical Significance | probability of some result from a statistical test occurring by chance |
| Stratified Sample | random sample in which members of the population are first divided into strata, then are randomly selected to be a part of the sample |
| Outliers | values that are distant from most of the other data in a set |
| Reliability | the consistency of a research study or measuring test |
| Correlation Coefficients | shows the strength of a relationship between two variables, -1.0 to +1.0 |
| Conformation Bias | tendency to search for information in a way that confirms one's preexisting beliefs |
| Negative Correlation | one variable increases while the other decreases, inverse relationship |
| APA ethical guidelines | rules that should be considered by psychologists in before an experiment |
| Hawthorne effect | the tendency of some people to work harder and perform better when they are participants in an experiment |
| Positive skew | the mean is greater than the median |
| Random Sample | sample where each member of the population has an equal chance of being selected to represent the whole |
| Population | the total group of individuals from which the sample might be drawn |
| Scatter plots | representations of the relationships between two variables |
| Factor analysis | method used to describe variability among observed variables in terms of a potentially lower number of unobserved variables called factors |
| Standardization | Consistency of how tests are administered and scored |
| Validity | a test's ability to measure what it is supposed to measure |
| Variance | a measure of how much values in a data set differ from the mean |
| Percentile Rank | the percentage of scores in its frequency distribution which are lower |
Created by:
19jkoch
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