OMbook_glossary

I have been putting this entry off! It's so hard, firstly, to guage the...

I am someone who loves to see data: tables are lovely and I think, having...

"Paradigm" on its own can have a number of meanings I think but the term...

Same thing as the F-measure Try also Agreement measures F-measure Inter-rater agreement/reliability Cohen's kappa Chapters Not covered in the OMbook. Online resources My Rblog...

Created in 2001 and now a very dominant self-report questionnaire. One of the mandatory...

The eight item version of the Patient Health Questionnaire. The PHQ-9 with a final...

This is simply the correlation between two variables after their correlation with another variable is...

Go to autocorrelation for the background and detail but this autocorrelation for lags of more...

A "dimension reduction" method of rearranging multivariate data. It's been used for decades in...

A term long used particularly by behavioural therapists but absolutely not limited to them. ...

I would prefer "measures" to "tests" but "tests" is the prevalent term and that probably...

This is the dominant term for what I would prefer, in our realms, we called...

Another category of COAs: Clinical Outcome Assessments. I prefer to think of them as...

A correlation coefficient indexes whether increases and decreases in values for one variable are associated...

These are three questions that have been mandatory in the UK IAPT (Improving Access to...

Pretty much what it says: do measurements on some measure predict future events as theory...

With accuracy, one of the two parts of observation error but the terminology belongs mostly...

"PROQOLID™ is a comprehensive online database designed to assist academic researchers, physicians, students, pharmaceutical companies,...

Part of thorough anonymisation of data. Basically the same as using a pseudonym but...

This has been a development of perhaps the last 20 years in which researchers publish...

See pre hoc hypothesis.

Literally "before this" I think. Crucial idea in inferential statistics, "tests" and the Null...

A combination of PPV (Positive Predictive Value) and NPV (Negative Predictive Value) of a screening...

Crucial parameter of any simple screening design: the probability that someone scoring above the screening...

This should probably be called "parametric statistics" as it's not just "tests", i.e. NHSTs: Null...

The probability that a finding as large or larger than found in the study would...

This is the process by which papers submitted to journals are sent to others "peers"...

Essentially another name for "quantiles", also synonymous with "centiles" Chapters Chapter 5 See also Much more detail in the...

This term comes from medicine and usually applies to the use of one measure to...

In principle this is anything that biases what research or other findings get published. ...

The PROQ in versions PROQ2 and PROQ3 and the related CREOQ3 (Couples Relating to Each...

The placebo effect is the finding that often the simple psychological expectation that something will...

When we have more than one data point per person, typically from the same measure...

Term used for the person taking final responsibility for a research project. In a world...

See Dependent variable Try also ... Dependent variableIndependent variableAssociationCorrelationInteraction Chapters Chapter 5.

PBR refers to evidence that is collected in real world scenarios, rather than the more...

PRNs started in physical health research and take many forms but the shared feature is...

PSYCHLOPS is a short, largely client generated state/outcome/change measure with a time window of the...

A population refers to a group that has something in common and is of some...