Leadership Impact® (L/I)

The Leadership Impact® provides managers and executives with clear insight into their leadership approach and the impact it has on others’ behaviour and performance.

See the Impact of Your Leadership

The true measure of leadership is the impact you have on others.

The Leadership Impact® tool helps you understand how your leadership approach shapes behaviour, performance, and results. It provides clear, practical insight into what is working, what is not, and where to focus to strengthen your effectiveness.

“Most leadership tools measure your style or behaviour. Impact goes further, focusing on the results your leadership creates through others.``

The Impact Your Leadership Has on Others

What is L/I?
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Who uses L/I?
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How We Help You Use L/I
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Sample Report
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Start Your L/I Today!
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What is L/I?

The Leadership Impact® (L/I) helps managers and executives understand how their leadership approach influences the behaviour and performance of others, providing clear insight into their real effectiveness.
The Leadership Impact® (L/I) combines two inventories to show how leadership is intended and how it is experienced. The Self inventory reflects the leader’s own view, while the Description by Others inventory captures feedback from peers, managers, and team members. Together, they provide a clear picture of leadership impact.

Why Use Leadership Impact™ (L/I)
Measure what you motivate in others

Most leadership tools measure your own behaviour or style. Impact goes further — it measures the results you generate through the people you lead. It captures the real effect of your leadership on others, making it the only true measure of leadership effectiveness.

It connects leadership to culture

Because leadership behaviour shapes how people think and work together, Impact clearly demonstrates the link between your leadership impact and your organisation’s culture. It shows how your daily actions ripple outward to influence norms, engagement, and performance.

It shows clear cause-and-effect

Impact reveals the direct connection between what leaders do (their strategies and approaches) and what they create (the responses, motivation, and performance of others). You’ll see exactly which actions to do more of, and which to reduce, to achieve your high performance outcomes.

It builds naturally on the LSI

For leaders who have already completed the Life Styles Inventory™ (LSI), Impact is the next step — translating self-understanding and thinking styles into tangible behavioural impact. It turns insight into action and connects personal development to organisational outcomes.

Actionable insight, not abstract data

The feedback is practical, visual, and immediately useful — helping leaders focus on specific, high-leverage behaviours that make the biggest difference to their teams and culture.

Stand alone or within your framework

Impact can be used as a standalone leadership assessment or integrated into your broader development programs. It’s flexible enough to fit seamlessly within your existing leadership, culture, or performance frameworks.

Client case study:
Elevating Leadership

One NZ has been working with Human Synergistics to develop the capability of their senior leadership team. Sarah Bellet, Learning and Capability Manager share their story so far.

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Start Your L/I™ Journey Today

Leadership Impact™ provides clear insight into how your leadership approach affects others, and where to focus to improve performance.

There are two ways to work with Leadership Impact. Work with our consultants to complete L I and receive a professional debrief, or get accredited to use L I yourself and build internal capability.