Reliability

The reliability of an assessment is often referred to as its consistency.The two most important types of reliability for assessments are: - Internal Consistency: refers to how well all the items of a certain scale measure the same idea - Test-Retest: refers to how well the assessment can produce the same results over time for the same person The EQ-i 2.0 exhibits strong reliability, both in terms of internal consistency and test-retest. This means that your clients’ scores will remain stable over time (unless development efforts are used to improve their scores) and that items measuring a certain subscale all tap into aspects of that subscale.

Validity

Validity ensures the accuracy and usefulness of an assessment. Although there are many different types of validity, they all focus on ensuring the assessment is measuring what it was designed to measure and whether it can predict important outcomes and can be assessed through a combination of several different types of validity evidence.
The EQ-i 2.0 was originally developed in North America but has been used in all regions of the world. The structure of the test, the consistency and accuracy of the items, and the results produced have been replicated across the globe and continues to enable a wide variety of cultures and languages to use the tool effectively to measure emotional intelligence. Overall, the EQ-i 2.0 has extensive evidence supporting its external validity: Predicts job performance, can be used to predict and improve leadership competencies, holds up in different regions across the world and is based on a history of assessment research spanning decades.