The Four Levels Are Still Relevant

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ASTD Staff

Can you believe that my four articles on reaction, learning, behavior, and results were printed in T+D more than 50 years ago? Immediately, they began to get the attention of workplace trainers. Some called them the "four levels" while others named them the "Kirkpatrick... More »

The Power of a Naked Consultant

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Patrick Lencioni

When it comes to providing service, especially in the world of consulting and workplace training, there is one quality that I believe is more powerful than any other for enabling us to transform the lives of the people we serve. It's not something you'll find on a list ... More »

50 Years of Evaluation

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Donald Kirkpatrick

This year, we celebrate the 50th anniversary of the Kirkpatrick Four Levels. In the early 1950s, I was teaching supervisory development courses at the University of Wisconsin Management Institute. I decided to pursue a PhD and chose to write a practical dissertation on ... More »