If you're measuring the intelligence of criminals who have been caught, why would you expect it to be otherwise?
IOW, you're recording the intelligence of a specific subset of criminals - those dumb enough to be caught!
If you expand your samples to all criminals you'd probably get a different number.
If you're measuring the intelligence of criminals who have been caught, why would you expect it to be otherwise?
IOW, you're recording the intelligence of a specific subset of criminals - those dumb enough to be caught!
If you expand your samples to all criminals you'd probably get a different number.