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(23) The Halo Effect

By |November 13th, 2015|

In the 1920s Edward Thorndike discovered that when people were asked to rate another person, their ratings were strongly influenced by single personality traits (e.g. appearance). He called this phenomenon the "halo effect"... Keywords: Halo [...]

(22) Reliability – How exact is the test?

By |November 13th, 2015|

Reliability is one of the most important quality aspects of measurement instruments. It can be fatal if measurement instruments are not reliable. But how can you determine the reliability of a psychological test or questionnaire? [...]

(19) Rethinking Fear and Stress?

By |August 14th, 2015|

For a long time a high stress level was associated wit negative health outcomes. In recent years, however, emerging evidence suggests, that it is not only stress itself that causes health problems but also our [...]

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