A third way to assess negotiation skills is to use online assessments that measure the candidates' cognitive abilities, personality traits, and behavioral preferences that are related to negotiation. For example, you can use online tests that assess the candidates' logical reasoning, problem-solving, creativity, and decision-making skills, which are important for negotiating complex and dynamic situations. You can also use online tests that assess the candidates' personality traits, such as assertiveness, agreeableness, openness, and emotional intelligence, which are important for negotiating with different people and styles. You can also use online tests that assess the candidates' behavioral preferences, such as their preferred negotiation style, strategy, and approach, which are important for aligning with the role and the organization's culture.
By using online assessments, you can complement the other methods and obtain objective and standardized data on the candidates' negotiation skills.