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!

O

Omitted variable

The is all about summer! OK, it's not generally but the classic explanation of how…

Orthogonal

Posh word meaning "at right angles to", "perpendicular to", "independent of" Details Can come up in a…

Open peer review

See peer reviewing. Dates Created 18.viii.23.

Opting out

More often termed "dropping out" or, mainly by researchers, "attrition". Used to refer to…

Open source software

OK, I admit it, this is mostly here to give a plug to the R…

Open access

A fundamental change in the academic publishing world that has exploded in the 21st Century….

Open data

The idea of "open data" is that research papers should put their data into a…

Overprinting

Overprinting is the name for a challenge when plotting large datasets in a scatterplot. …

Outlier

A value for a continuous variable that is unusual by virtue of lying well away…

Observation

Can be used in two slightly different ways in our field but in both cases…

More

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.