Emotional Quotient (EQ) is standardized measurement of emotional intelligence, which refers to their ability to recognize, understand, and manage their own emotions, as well as their ability to perceive and empathize with the emotions of others (Goleman, 1995). EQ encompasses skills such as self-awareness, self-regulation, social awareness, and relationship management. It provides insights into an individual's capacity to handle emotional challenges and navigate interpersonal interactions effectively.

The term "Emotional Quotient" was popularized by psychologists Peter Salovey and John D. Mayer in 1990, although the groundwork for the concept was laid by earlier researchers such as Howard Gardner and Daniel Goleman (Salovey & Mayer, 1990). Salovey and Mayer's seminal paper "Emotional Intelligence" (1990) laid the foundation for the scientific exploration and assessment of emotional intelligence. Since then, various models and assessments have been developed to measure EQ, including the Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEIT) and the Emotional Quotient Inventory (EQ-i)(Mayer et al., 2002; Bar-On, 1997). These measures aim to provide individuals and organizations with valuable information about emotional competencies and their impact on personal and professional success.

Emotional intelligence is closely linked to Communication Intelligence (CI)™ and CQ:  Communication Quotient™. Individuals with a high EQ possess strong self-awareness, allowing them to understand and regulate their own emotions. This self-awareness enables them to communicate their thoughts, feelings, and needs more effectively. Through managing their emotions, individuals with high EQ can prevent their own emotional biases or triggers from negatively impacting their communication with others.

CQ: Communication Quotient™ is also considered to bridge the gap between IQ and EQ. CQ: Communication Quotient™ emphasizes the role of effective communication in navigating and leveraging emotional intelligence effectively in various contexts.

- EQ: Goleman, D. (1995). Emotional Intelligence: Why It Can Matter More Than IQ. Bantam Books.
- Salovey, P., & Mayer,      J. D. (1990). Emotional intelligence. Imagination, Cognition and Personality, 9(3), 185-211.
- Goleman, D. (1995).      Emotional intelligence. Bantam Books.
- Mayer, J. D., Salovey,      P., & Caruso, D. R. (2002). Mayer-Salovey-Caruso Emotional      Intelligence Test (MSCEIT) user's manual. Multi-Health Systems.
- Bar-On, R. (1997). The      Emotional Quotient Inventory (EQ-i): Technical manual. Multi-Health Systems.