Measuring
before and after
TO MEASURE
THE EFFECT of training, you need to take each indicator in turn and generate before and
after data what the level was before the training and what it was afterwards. The
difference between the two provides an indication of the effect of the training.For example, sales in a certain region may be $10m a month leading
up to a training programme and $12m a month after. The 20% increase in productivity could
be attributed to the training and entered into the ROI analysis.
Control groups
It is not always so clear cut that training has been the cause of a change
in a performance indicator. Say that a number of measures were taken simultaneously to
cure a problem. How do you know which of the measures was responsible for any positive
results? Similarly, at the same time as a training programme is run, there may be a
completely unexpected downturn in a market, meaning that performance actually goes down
after the training. How can you separate the effect of the training from the effect of the
downturn?
In these situations, the interaction between these
variables can be significantly reduced by the use of a control group. A control group is a
subset of the target population that does not receive the training. By comparing the
results of those who have received the training with those of the control group, you can
separate the effect of the training on performance.
For example, here are some statistics for a particular
performance indicator:
| |
Before |
After |
Change |
| Group receiving training |
10 |
16 |
+60% |
| Control group |
10 |
12 |
+20% |
| Effect of training |
|
|
+40% |
It can be seen from this table that performance has risen
by 20% even without training. The increase in performance that can be attributed to the
training is therefore 40%.
Where next?
Sometimes it seems that evaluation is becoming a show of machismo.
"What level is your company up to? Oh dear, you mean you're still using happy sheets?
We've just graduated to level 5 - soon we'll be measuring the effects of our training on
the global economy."
It's true to say that evaluation does get trickier the more
you move up the levels. It's also true to say that financial impact is an increasingly
important issue. Remember that all levels of evaluation are important for
different reasons, but that the only ones that count are those where you can produce
valid, reliable results. Get evaluating - you may even find that your online learning's
been a success.
END
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