Leadership/Impact® (L/I)

Research and Development by Robert A. Cooke, Ph.D.


Designed specifically for those in leadership roles—primarily senior managers, high-potential middle managers, and CEOs—Leadership/Impact® (L/I) is a 360-feedback assessment that represents the cutting edge of leadership effectiveness research. For executives to be leaders, they must transform, shape, and influence the environment within which people operate and the ways in which they approach their work and interact with each other. Research shows that leaders who employ prescriptive strategies (e.g., "Creating a Setting" in a "Facilitating" manner, including empowering people) have a Constructive impact and those who employ Restrictive strategies have a Defensive impact on others’ behaviors. Prescriptive leaders create more effective and sustainable organizations than restrictive leaders do.

Feedback is based on information collected using two forms of the Leadership/Impact® inventory: the L/I Self Report Inventory, identifying the leader’s own perceptions of his/her leadership strategies and Ideal impact, and the L/I Description by Others Inventory, describing others’ impressions of his/her overall effectiveness, impact on their behavior, and leadership strategies. Results are presented to participants in a comprehensive, confidential feedback report that includes Circumplex-based profiles of the leader’s Ideal and Current impact (normed on the basis of 5,000 managers), bar charts and tables on the leader’s strategies, descriptive text, and recommendations for improving leadership effectiveness.


  • Provides leaders with extensive gap analysis of the impact they want to have and their actual impact along with implications for organizational culture
  • Links leadership strategies directly to behavioral impact and leadership effectiveness
  • Meets academic and psychometric standards, and normed on the basis of an extensive international sample.
  • Part of the Integrated Diagnostic System, which uses the Human Synergistics International Circumplex to link individual, manager, leader, team, and organization behaviors

Interested in using L/I?

Contact us for information on product pricing and/or consulting and coaching services. (Online ordering is not available.)

L/I requires accreditation from Human Synergistics before materials can be purchased. Click here for more information about accreditation with the Impact Workshop.

The Impact Accreditation Program is preapproved for HRCI recertification credit hours and ICF Continuing Coaching Education units.

The use of this seal is not an endorsement by the HR Certification Institute of the quality of the activity. It means that this activity has met the HR Certification Institute’s criteria to be pre-approved for recertification credit.


CCE Seal

As authorized by the International Coach Federation, Continuing Coaching Education (CCE) units are issued to participants who complete the Impact Accreditation program as follows: 4.25 hours toward ICF Core Competencies and 8.83 hours toward Resource Development.