Brenda,

>Maybe I misunderstood something.
>
>It's not scientific imho because comparing crippleware to 
>shareware gives you no "control" group. 

The way I look at it, the 50% who did not have the cripple take place were in
fact a type of control group.  Same software, same nag screens, but 50% had
completely usable output while 50% had every fourth page worthless yet
verifiable it could work since the output was merely reversed.

But even if you want to argue that is not your definition of a control group,
look at the results.  It suggests the *opposite* of the assertion:

>I have heard that some people don't even continue to try crippled 
>software just because it is crippled. Like in this example, because they 
>can't get 1 complete output they just immediately give up on the program.

If that were true, it would suggest crippled software would have a lower
registration rate.  Yet the study was tipped the opposite direction by a five to
one margin.

Even if you were to allow that a certain portion of people may immediately
disregard software when they find it crippled, the irrefutable evidence in this
example was that on balance the bulk of the revenue still came from the crippled
version. 

One contributing factor may be that the segment of people who immediately
disregard crippled software would by definition need to include those who have
absolutely no intention of paying a registration fee, and only consider
"freeware" solutions.

I would suppose the method of the cripple itself may be a bigger factor with
some software.  This one seems like an ideal candidate for testing the
difference because the user interface was exactly the same, and only the printed
output was crippled.  But even that was verifiable the software could work: 3
out of 4 pages were correct, with every fourth page having the right information
(proving it could decipher the help file) but with the text reversed making it
unpleasant to read.

A very interesting study, IMHO.

Getting back to the subject thread, it is also interesting to note that the
original software only took about 2 days of development time.  But within the
first year brought in over $34K.  Extrapolating the study results suggest it may
have had the potential for bringing in over $50K in the first year.

Not bad for two days' work!

Doug

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