OM book glossary

This is the glossary, over 300 entries and climbing, for the book “Outcome measures and evaluation in counselling and psychotherapy” written by myself and Jo-anne Carlyle and available now from SAGE. Some glossary entries link to more detailed expansions of the topic in my Rblog and, at last, an increasing number now link with interactive online (“shiny”) apps.

You can see the alphabetical list of entries below which is a good place to browse, or you can use this search box.

Beware: the way the search orders the matches is to my mind bizarre so scroll down if what you typed isn’t first on the list, you may find something with exactly the title that is exactly the phrase you typed in to find is hidden down the list of suggestions.

If what you want is not there and you think it should be, contact me and tell me and I will put it on the (long!) list of entries to be added!

C

Classical Test Theory (CTT)

This is one of the two main statistical/mathematical approaches to quantitative psychometrics of the last…

Confidence intervals (CIs)

This is an incredibly useful method. The basic idea is that when you have a…

Chaos, chaos theory

Arts therapists, like many artists and other "creatives" argue that creativity, i.e. the emergence of…

Convergent validity

Part of concurrent validity (q.v.). Convergent validity is evidence that data from a measure…

Concurrent validity

Literally evidence supporting the validity of a measure that is obtained from data obtained at…

Crown-Crisp Experiential Index (CCEI)

Hm, I thought this would be quick and easy but I think it's going…

Composite scores

What it says: making up a score by adding up other things. Despite that…

Centring/Centering

A bit esoteric but you may meet it in reports, particularly those using multi-level modelling…

CORE-14-DD

This is a convenience name for the presentation together of 14 items of the CORE-OM…

Clinically significant change (CSC)

Part of the "Reliable and Clinically Significant Change (RCSC)" methods developed by Jacobson et al. Details I…

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Page last updated 19.v.24 to add the new BetterDocs “encyclopedia” listing of entries. Author CE, page and all glossary contents are copyright to me. That may change to a Creative Commons licence later when I am happier with the content.