Motivation and The Candle Problem

by Rhoads on August 13, 2013 in Motivation

Our world continues to move faster and is increasing in complexity. So what’s the best way to motivate people to think creatively and solve complex problems in a shorter amount of time? Let’s take a look at a study that examines this question.

“The Candle Problem” was conducted by Professor Duncker in 1945. Individuals are led into a room that has a table sitting against the wall. On it is a box of thumbtacks, some matches, and a candle. They are asked to attach a lit candle to the wall in a way that the wax won’t drip onto the table and to do this as fast as they can.

Many who attempted the test tried creative methods but were unsuccessful. Some took a tack and tried to pin the candle to the wall…but that wouldn’t work.

Others lit a match and melted the wax on the side of the candle and then tried to stick it to the wall …but, that wouldn’t work either.

Some, figured out that the real solution was to empty the box of tacks then tack it to the wall and place the lit candle in it.

Professor Duncker realized that people have difficulty in solving a problem when one element has a fixed function that must be altered. In this case, the problem solver has to be able to realize that the box is not just a container for the tacks, but that it can also be used to hold the candle on the wall.

To demonstrate this point, he repeated The Candle Problem again with new participants, but this time he placed the tacks next to the empty box. This time the problem solvers could see that the box’s function was not directly tied to holding the thumbtacks. As a result, virtually all the participants were able to solve the problem with relative ease.

The Candle Problem becomes even more intriguing when you add a monetary reward to the task which is exactly what a professor of psychology, Sam Glucksberg did in 1962.

Glucksberg took a set of new participants and split them into two groups. He told the first group that “the person to complete the problem the fastest will receive $150, and if you are in the top 25% of fastest times you’ll receive $40 (values adjusted for 2013 value).” To the other group he did not offer a monetary reward, but still asked them to solve the problem as fast as they could.

Then he split those groups up and half of each group faced the problem with the tacks placed outside of the box, and the other half faced the problem in the more complex way with the tacks placed in the box.

You’d expect that those who were given the incentive of money would solve the problem faster and in fact that is true when the tacks were out of the box. More of the participants in the group that was incentivized by money solved the problem and with faster times than the other group.

However this was not the case when the problem was given in the more complex way with the tacks placed inside of the box. In this case, those who were not incented by money performed better than those who were offered money.

Glucksberg found that adding the variable of competition for a monetary reward creates levels of stress that shuts down the creative thinking and problem solving areas of the brain.

This finding can have huge implications on the reward model that many organizations use today. Many organizations use an “if – then” motivation model, meaning if you do this, then you get that. While directly tying financial incentives in an “if – then” format to simple tasks can be effective, tying financial incentives in this format to complex tasks that require creative thinking will actually have a negative impact on performance.

This viewpoint was popularized by Daniel Pink in his book Drive where he unpacks the concept of intrinsic and extrinsic motivation. The main premise of his book is that you when you hire people to do complex and creative work, you need to motivate them with autonomy, mastery, and purpose rather than the carrot of a financial reward. Pink is clear to point out that money is still very important…however for this type of work, organizations should pay their employees very well and not tie it directly to the result of their creative work because that would only decrease their performance.

So if you lead a team or are trying to figure out how to motivate people to do something, think about the type of task that is being completed and if it complex and requires creative thinking, understand that using money as a reward for performance on this type of work will actually decrease the quality of the work you are trying to incite.

Sources:

Drive, by Daniel Pink

The Cornell Daily Sun, “Solve this Problem, Receive $20”, by Steven Zhang

The Candle Problem – Wikipedia

http://www.lucideastudio.com/2013/08/13/motivation-and-the-candle-problem/

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