Survey - Adult Reader's Responses of the Harry Potter books

[⸘Ŭalabio‽]

No: HPFGUIDX 193104

	I completed the survey.  I found a problem.  It is too late to fix now, but it can be fixed for the next survey:

	The survey has a scale from 1 to 10.  This is innumerate.  The scale should start at 0.  You will have a pileup at 1 of people liking the books a little and people hating the book and no way to separate the 2 types of people.

	Much psychometrical research exists.  Before going into how to build scales, we need to understand what the scales represent:

	All scales are logically with 0 to 1 or -1 to +1.

	Now that we established that, we can reduce errors by making all values the same length:


	Rather than 0 to 100, which can read to 100 becoming 10 if we drop a 0 (or 1, or 0), and might lead to out-of-bound errors like 109, keep all values the same length with leading 0s if need be (00 to 99).  04 is a perfectly acceptable score.

	If the scale is logically -1 to positive 1 (e. g. -9 to +9 or -99 to +99), skip over the value of 0 or 00, thus forcing respondents to come down 1 way or another on a subject.

	One finds a lot more to psychometrical research, but these are the basics.