I use the WLEIS in my research on EI in the workplace. The WLEIS is a free EI test and in my opinion it is the best tool for evaluating EI. Here is a short explanation about the scale and the reasons we chose to use it (Taken from: Meisler & Vigoda-Gadot, 2014):
Emotional Intelligence - We used the Wong and Law Emotional Intelligence Scale (WLEIS; Law et al., 2004; Wong and Law, 2002), to measure emotional intelligence. We chose to use this self-report scale for five main reasons. First, the WLEIS is consistent with Mayer and Salovey's definition of EI (Mayer and Salovey, 1997) and is based on the ability model presented by these scholars. Second, recent studies have tested and retested this scale in different cultures (Law et al., 2008; Law et al., 2004; Shi and Wang, 2007) and different ethnic and gender groups (Whitman et al., 2011), and established it as a solid measure with sound validity and reliability. Third, unlike other self-report EI scales that have been criticized for not being conceptually different from measures of personality, the WLEIS has been found to be distinct from the Big Five personality model (Law et al., 2004). Fourth, this parsimonious 16-item scale was specifically developed for use in organizations (Law et al., 2004; Wong and Law, 2002). Last, in a recent study (Law et al., 2008) the WLEIS was found to be a better predictor of objective job performance compared to the performance-based emotional intelligence test, MSCEIT (Mayer et al., 2000). The scale consists of four dimensions: self emotion appraisal; others' emotion appraisal; regulation of emotion; and use of emotion. Sample items for this measure are: (1) "I have a good sense of why I have certain feelings most of the time"; (2) "I always know my friends' emotions from their behavior"; (3) "I always set goals for myself and then try my best to achieve them"; and (4) "I am able to control my temper so that I can handle difficulties rationally". The reliability of the scale was 0.88.
You can find the scale in the following manuscripts:
Law, K.S., Wong, C.S. and Song, L.J. (2004). The construct and criterion validity of emotional intelligence and its potential utility for management studies. Journal of Applied Psychology, 89 (3), 483-496.
Wong, C.S. and Law, K.S. (2002). The effects of leader and follower emotional intelligence on performance and attitude: An exploratory study. The Leadership Quarterly, 13 (3), 243-274.