[phpesp-dev] phpESP - Reversals

[rebecca s. <rss...@ya...>]

Topic:
Reversal Indicator

What:
A way to identify questions which need to have their
answers reversed before scoring the item.

Where:
Add 1 column to phpesp.question table.  Column name
would be 'reversal'

Value:
Reversal could have a value of blank(null) or 'R';
defaults to blank (null).

Why:
Makes it much, much easier to automate scoring on
likert scale items and ensure they are accurate. 

Example:
Do you like Chocolate Survey
1 = Strongly Agree, 2 = Agree, 3 = Neutral, 4 =
Disagree, 5 = Strongly Disagree

Questions:
Landru answers:
Q1.  I like chocolate         : 1 (strongly agree) 
Q2.  I do not like chocolate  : 5 (strongly disagree)

Currently the average score is 3 (neutral) (1 + 5 = 6
/ 2 questions = average score of 3).

The score should be: 1 + (question 2 answer treated as
a reversal = 6 - answer) 1 = average score of 1
(strongly agree) (1 + (6 - 1) = 2 / 2 questions =
average score of 1).

Modules impacted:
include>tab>questions.inc
include>functions>survey_export_csv.inc

Table impacted:
phpESP.question

Any comments?  Feels like I've missed another screen
(module) that should be updated.

Bekasu




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