When personality psychologists measure trait differences in extraversion, they are making phenotypic observations.
A phenotype refers to empirical features that distinguishes one person from another. Phenotypic observations are made by looking at the external features and behaviors of persons, and conclusions are derived from this process.
Phenotypes result from the interaction between the genotype of a person and her environment. The behavioral or psychological phenotype of a person indicates her predisposition to act in a certain way, for example in response to stressful situations.
Extraversion is a measure of the sociability and extroverted features of a person. Someone who scores high in an extraversion test enjoys social situations, are jovial and energetic.
To learn more about phenotypes & genotypes : https://brainly.com/question/20730322
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