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| The number of participants or observations in a study. Also called the "n" |
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| Research method in which the Psychologist makes observations in a natural environment without interfering with the participants. |
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| Research method that involves an in depth study of one or more individuals. |
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| Research method in which data is gathered by asking questions of many individuals, in person, by phone, or questionnaire. |
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| Research method that follows the same group of participants over an extended period of many years. |
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| Research method that draws data from different groups for comparison. |
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| the measure of the degree of relationship between two variables or sets of data. |
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| the factor that changes in an experiment. |
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| The group or individuals that have the independent variable applied. |
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| The group or individuals that do not have the independent variable applied. |
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| This sample is representative of the larger population |
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| Non-Representative Sample |
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Definition
| This sample is not representative of the larger population. |
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| This sample is taken at random without knowledge of who is chosen. Gives all equal chance of being chosen but still maybe non-representative. |
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| Deliberately choosing individuals to conform to the subgroups and proportions of the larger population. |
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| A factor that is changed in order to observe effects |
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| A factor that changes or is affected by the independent variable. |
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| Results need to be obtained by other researchers that duplicate the original study. |
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| The method of conduct or rules of Psychology that make researchers follow accepted norms of behavior regarding research, protection of participants. |
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| When a researcher's expectations influence their behavior and therefore the participant's behavior. |
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Definition
| The participants have no knowledge of what treatment is being used. |
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| Both the researcher and participants have no knowledge of what treatment is being used. |
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| Participant's experience a change in circumstances due to the belief that the treatment will have an effect. |
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| Using mathematics to summarize and make valid inferences from collections of data. |
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| Listing and summarizing data in an understandable way. |
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| An arrangement of data that shows how often a s particular score or observation occurs. |
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| A graph of normal distribution. |
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| Average of all occurances. |
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Definition
| The measure of the pread of the occurances |
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| The difference between the high and low occurrence |
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Definition
| A measure of variance that describes the average distance of every score from the mean. |
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Definition
| Describes the direction (positive or negative) of the relationship between two sets of variables |
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Definition
| Methods used to determine whether research data supports the hypothesis or if the results were due to chance. |
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| Statistically Significant |
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Definition
| Signifies that the results are likely not due to chance. |
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