Term
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Definition
| The consitency or stability of a measure of behavior. |
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Term
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Definition
| Real score on the variable. |
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Term
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Definition
Pearson corrrelation coefficient
0.00 to+1.00 and 0.00 to-1.00
needs at lease two score on the measure from many individuals |
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Term
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Definition
| The measure appears "on the face of it" what it is supposed to measure. |
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Term
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Definition
| Measuring the same indviduals at two points in time. |
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Term
| Internal consistency reliability |
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Definition
| Assessment of reliability using responses at only one point of time. |
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Term
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Definition
Correlation of the total of the total score on one half of the test with the total score on the other half.
Spearman-Brown split-half reliability coefficient |
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Term
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Definition
| Avereage of all possible split-half reliabilty coefficients. |
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Term
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Definition
| Each item score with the total score based on all items. |
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Term
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Definition
| Extent to which raters agree in their observations. |
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Term
| Methods of assesing reliability |
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Definition
-Test-retest Reliability
-Internal Consistency Reliability
-Interrater Reliabiity |
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Term
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Definition
| Does it measure what it's supposed to |
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Term
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Definition
a.k.a Behavior
-Predictive validity
-Concurrent Validity
-Convergent Validity
-Discriminant Validity
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Term
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Definition
Research that uses a measure to predict some future behavior.
i.e GRE high score on this predict that graduation |
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Term
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Definition
| Research that examines the relationship between the measure and a criterion behavior at the same time. |
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Term
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Definition
| The extent to which scores on the measure in question are related to scores on other measures of the same construct or similar constructs. Measures of similar constructs should converge. |
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Term
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Definition
| The measure should discriminate between the construct being measurred and other unrelated constructs. |
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Term
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Definition
| A measure is said to be reactive if awareness of being measured changes an indivdiual's behavior. |
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Term
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Definition
| Making observations of individuals in their natural enviornments. |
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Term
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Definition
| Allows the researcher to observe the settinng from the inside, a way to experience events in the same way as the participant. |
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Term
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Definition
| The careful observation of one or more specific behaviors in a particular setting. |
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Term
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Definition
| The possibility that the prescence of the observer will affect people's behavior. |
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Term
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Definition
| Observational method that provides a description of an individual. |
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Term
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Definition
| Type of case study in which a researcher applies psychological theory to explain the life of an individual. (usually an important historical figure) |
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Term
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Definition
| Using previously complied information to answer questions. |
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Term
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Definition
| Systematic analysis of existing documents. |
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Term
| Computer-assisted telephone interview (CATI) |
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Definition
| Interviewer's questions are prompted on the computer screen, and the data are etered directly into the computer for analysis. |
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Term
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Definition
| A limited number of response alternative are given. |
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Term
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Definition
| Researcher identifies clusters of individuals and then sample from these clusters. |
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Term
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Definition
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Term
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Definition
| Require that the interviewer and respondent meet to conduct the interview. |
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Term
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Definition
| An interview with a group of about 6 to 10 indviduals. |
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Term
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Definition
A mark along a continuous 100-milimeter line that has descriptions at each end.
(Bad_________________________Good) |
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Term
| Haphazard (Convenience) Sampling |
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Definition
| "Take them where you find them" (Form of nonprobability sampling) |
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Term
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Definition
| Admininstered on the Internet, has both open and closed ended questions |
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Term
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Definition
| All the biases that can arise from the interviewer interacting with the respondent. |
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Term
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Definition
| Inexpensive way of contacting people, slected for the sample. |
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Term
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Definition
| The probability of a member of the population being chosen is unknown. |
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Term
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Definition
| Respondents are free to answer in any way they like. |
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Term
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Definition
| Same people are surveyed at two or more points in time. |
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Term
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Definition
| Composed of all individuals of interest to the researcher. |
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Term
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Definition
| Each member of the population has a specifiable probability of being chosen. |
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Term
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Definition
| To obatin a sample of people who met some predetermined sampling. (Form of nonprobability sampling) |
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Term
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Definition
| Choosing a sample that reflects the numerical composition of various subgroups in the population. (Form of nonprobability sampling) |
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Term
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Definition
| Ex: When a computer generates a random list of telephone numbers. |
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Term
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Definition
| Ask people to provide "how much" judgements on various dimensions. |
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Term
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Definition
| The percentage of people who actually completed the survey. |
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Term
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Definition
| Tendency to respond to all questions from a particular perspective rather than to provide answers that are directly related to the questions |
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Term
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Definition
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Term
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Definition
| Only have the sample to use but not the entire population. |
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Term
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Definition
| The actual population of individuals from which a random smaple will be drawn. |
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Term
| Semantic differential scale |
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Definition
| Measure of the meaning of concepts that was developed by Osgood and his associates. |
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Term
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Definition
| Every memeber of the population has an equal probability of being slected for the sample. |
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Term
| Stratified random sampling |
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Definition
| Population is divided into subgroups and random sampling is used to select memebers from each stratum |
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Term
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Definition
| Questionnaires and interviews to ask people to provide information about themselves. i.e demographics, beliefs |
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