The Life Styles Inventory (LSI), developed by Dr. J. Clayton Lafferty, assesses 12 distinct patterns of thinking that impact personal effectiveness. These styles are categorized into three clusters: Constructive (e.g., Achievement, Humanistic-Encouraging), Passive/Defensive (e.g., Approval, Conventional), and Aggressive/Defensive (e.g., Power, Competitive).

The LSI serves as a tool for coaching and self-development, enhancing self-understanding, productivity, leadership capabilities, interpersonal skills, and overall well-being. Research links LSI styles to indicators of effectiveness such as management performance, problem-solving ability, interpersonal relations and organisational culture impact.

LSI Benefits

Designed for managers, leaders, students, and those in professional and technical roles, the LSI empowers people to actualize their potential and contribute to the success of their organization. It’s particularly valuable for helping individuals:

• discover new and/or different ways of thinking and behaving
• increase effectiveness in their roles
• reduce and cope better with stress and the effects of pressure and change
• achieve self-set goals
• think more creatively
• improve interpersonal skills and relationships
• increase their overall satisfaction and well-being
• focus on personal strengths, blind spots, and stumbling blocks

How the LSI tool works

LSI training and feedback is based on two parallel lifestyle inventory questionnaires:

1. LSI 1 (self description): Individual participants describe their thinking styles, personal effectiveness, and satisfaction at work and home.
2. LSI 2 (description by others): Up to 12 peers, managers, and direct reports provide 360-degree feedback on each individual’s behavioral styles and effectiveness.

LSI Pricing 2025

CLICK – LSI Information

CLICK – LSI 360 Sample Report