Task 1 - Who are you? Flashcards
construct validity
the extent to which a measurement accurately represents a theoretical construct
convergent construct validity
the degree to which 2 measures that theoretically should be related, are in fact related.
discriminant construct validity
construct should be uncorrelated with theoretically unrelated concepts
principle of aggregration
the sum of a set of multiple measurements is a more stable and unbiased estimator than any single measurement from the set.
self-report
asking the person questions about his behavior, thoughts and feelings in various situations. personality is inferred on the basis of responses. measurements need to be structured - every person is asked the same set of questions & there is a fixed set of response alternatives for every question
advantages of self-reports
- provides a fairly accurate measurement. generally nobody has access to more information about a person than the person themselves
- respondents are likely to be more motivated to talk about themselves than others
- cheap, convienent and quick way to gather large amounts of data
disadvantages of self-reports
- relies on the assumptions that people know their behaviors, thoughts, and feelings well and that people are willing to report those behaviors, thoughts, and feelings
- minor changes in the question wording, format, or context can result in major changes in the obtained results
- vulnerable to response biases
- construction is time-consuming
- cultural differences
socially desirable responding
individuals present themselves in a more favorable light. this does not only happen because people want to present themselves in a better way. also, it has been suggested that we respond more positively because we have a distorted self-image (self-enhancing biases)
acquiescent responding
individuals agree with responses without considering what the question is asking
extreme responding
giving extreme ratings on scales
MMPI Lie Scale
present attitudinal and behavioral statements that are common, yet not favorable to admit. a particular number of statements selected as ‘false’ suggests socially desirable responding.
self-ratings
a type of self-report in which the person is aksed to rate his/her own level of a trait (e.g., impulsivity from 1 to 10).
projective/indirect tests
e.g., rorschach ink blot tests, were used rather than self-reports partially due to the idea that individuals could not consciously provide accurate self-information
observer/informant/other/peer report
someone else is asked about the behaviors, thoughts, and feelings of an individual
advantages of observer reports
- an individual’s personality might sometimes be judged more objectively by someone who observes the individual from the outside
- the principle of aggregation dictates that using several observers increases reliability of the measurement
disadvantages of observer reports
- observers might be inclined to present the individual in a good way or bad way
- might be affected by new biases such as fundamental attribution error - emphasizing others’ dispositions over situational factors when explaining their behavior
- there are some aspects of an individual’s thoughts and feelings that other may never observe