MO-index, a transformed score to present and compare results of Likert response format scales

Poster


Goh, Hong Eng. 2011. "MO-index, a transformed score to present and compare results of Likert response format scales." Byrne, Don (ed.) 46th Australian Psychological Society Annual Conference 2011. Canberra, Australia 04 - 08 Oct 2011 Melbourne, Australia.
Paper/Presentation Title

MO-index, a transformed score to present and compare results of Likert response format scales

Presentation TypePoster
Authors
AuthorGoh, Hong Eng
EditorsByrne, Don
Journal or Proceedings TitleProceedings of the 46th Australian Psychological Society Annual Conference
ERA Conference ID50300
Number of Pages1
Year2011
Place of PublicationMelbourne, Australia
ISBN9780909881436
Web Address (URL) of Paperhttp://www.psychology.org.au/Assets/Files/Combined-Abstracts-of-2011-Australian-Psychology-Conferences.pdf
Conference/Event46th Australian Psychological Society Annual Conference 2011
Australian Psychological Society (APS) Annual Conference
Event Details
46th Australian Psychological Society Annual Conference 2011
Event Date
04 to end of 08 Oct 2011
Event Location
Canberra, Australia
Event Details
Australian Psychological Society (APS) Annual Conference
APS Annual Conference
Abstract

Evaluation of employees' opinions about work-related issues is commonly practised in organisations. Regardless of whether the surveys are conducted on a large-scale, e.g., organisation wide, or on a smallscale, e.g., work area, the mainstay is to develop initiatives to address challenges and build on achievements so as to benefit both the employees and the organisation. With resources invested in
action plans to address problematic areas, organisations look for meaningful interpretation and maximum information from surveys, using follow-up surveys to facilitate better informed decision-making by management. The main focus of this paper was to address how best to accurately communicate results and assess change in scores. The Likert response format (e.g., 5-point ranging from strongly disagree to strongly agree) and summated scales are commonly used in surveys. The coding of Likert responses
from the items with sequential integers and then summating them to produce a raw score percentage is widely practised as a means of presenting results and the comparison of scores from different survey cycles to employees and management. However, percentage scores are not interval measurement, which makes comparisons between scores (e.g., from two survey periods or two measures) inaccurate. It is
proposed that there is a vast improvement in the interpretability of change scores when organisations adopt the MO-Index, a transformed score. It applies the log of odd ratios of the percentage of cumulative item endorsement to an inventory with a Likert response format to transform scores into an interval scale of logits. The interpretation of logits was made more meaningful and comprehensible to all stakeholders through the linear transformation of logits to a scale of Outcome Units that ranged from +100 to -100.

Keywordssurveys; survey interpretation; workplace; decision making; management
ANZSRC Field of Research 2020520104. Industrial and organisational psychology (incl. human factors)
470108. Organisational, interpersonal and intercultural communication
350503. Human resources management
Public Notes

This is a poster paper. Not reportable. The author/s will retain copyright of their abstract, in addition to the moral rights they are entitled to as author/s of the abstract. The Australian Psychological Society Ltd does not hold copies of any papers presented at conferences. A formal paper was not produced for publication in the conference proceedings as the APS conference organisers decided not to offer this in 2011.

Byline AffiliationsDepartment of Psychology
Institution of OriginUniversity of Southern Queensland
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