Multi-item Scale Development: Writing, Adapting and Assessing


03/05/2016 - 04/05/2016

Organised by:

NCRM, University of Southampton


Dr Pamela Campanelli


Intermediate (some prior knowledge)


Jacqui Thorp
Training and Capacity Building Co-Ordinator
NCRM, University of Southampton
Tel: 02380 594069


View in Google Maps  (CF10 3WT)


Glamorgan Building, King Edward VII Avenue, Cardiff


Multi-item scales are more common in some disciplines than others. This 2-day course is designed to inspire participants from all disciplines that it is possible to develop your own high quality multi-item scale (or correctly adapt an existing multi-item scale) and offers guidance on how to do this. It covers the psychometric principles of scale development while adding in general principles of questionnaire design.  It gives participants the chance to write a multi-item scale, critique the wording of existing multi-item scales and statistically assess reliability and dimensionality in a computer lab session.

The course covers:

  • Rules for designing single items (questions) - knowing these rules will help you design a more effective scale
  • Workshop on critiquing single items
  • Background to multi-item scales
  • Psychometric validity and reliability
  • How to write a multi-item scale using Classical Measurement Theory (CMT)
  • Workshop in writing a multi-item scale
  • Workshop: All participants bring in a multi-item scale and the group gives feedback
  • Testing single items - testing your scale this way in addition to the statistical assessment will give you valuable information about poor items
  • Statistical assessment of multi-item scales in computer lab
  • Workshop: Computer lab assessment of existing scales
  • Introduction to Item Response Theory (IRT)

***Remember to bring an example of a multi-item scale***

By the end of the course participants will:

  • Be knowledgeable about the elements that affect the reliability, validity and dimensionality of a multi-item scale
  • Have a thorough understanding of how to:
    • Design a multi-item scale
    • Adapt properly an existing multi-item scale
    • Assess a multi-item scale through the wording of its items and statistical assessment
  • Know the difference between Classical Measurement Theory and Item Response Theory

This course is essential for people who wish to write, adapt or assess a multi-item scale.  The course is useful for people doing or commissioning the research.



The fee per teaching day is:

• £30 per day for UK/EU registered students
• £60 per day for staff at UK/EU academic institutions, UK/EU Research Councils researchers, UK/EU public sector staff and staff at UK/EU registered charity organisations and recognised UK/EU research institutions.
• £220 per day for all other participants

All fees include event materials, lunch, morning and afternoon tea. They do not include travel and accommodation costs.

Website and registration:




Quantitative Software, SPSS, Questionnaire Design , Scale Development , Reliability , Validity , Cronbach's Alpha , Factor Analysis

Related publications and presentations:

Quantitative Software

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