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The concept of extraversion and introversion in personality was given by ........
Measurement Error
Measurement error refers to the difference between the actual value of a quantity and the value obtained by a measurement process, due to inaccuracies or fluctuations in the measurement system.
Test Administrators
Individuals who oversee the administration of tests, ensuring that testing protocols are followed.
Inter-Rater
Relating to the level of agreement or consistency between different individuals (raters) assessing or scoring the same phenomenon.
Consistency
The degree to which a person's responses or behaviors are the same across different situations or over time.