This is the glossary 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 now link with interactive online (“shiny”) apps.

Just type in whatever you want to look up below and you should see pertinent entries if I have created them yet (over 200 now and climbing!) Beware, the way that the search orders the matches is to my mind bizarre so scroll down through what it offers you, 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.

The full list of entries follows in alphabetical order. 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!

## All OM book glossary entries

- “Acting out”
- “Big data”
- “Dropping out”
- “Hard” measures
- “Normal” distribution
- “NS”, “p > .05”, “non-significant”
- “Soft” measures
- “SPIN and SNOUT” in screening
- (Pre)registration
- Age
- Aggregation
- Alpha
- Alternative (alternate) hypothesis
- Anderson-Darling test
- Anonymisation
- Attrition
- Audit, Clinical Audit
- Authenticity Scale (AS)
- Barplot / bar plot
- Beck Anxiety Inventory (BAI)
- Beck Depression Inventory (BDI)
- Between groups tests
- Bias
- Binomial distribution
- Blinding
- Body Shape Questionnaire (BSQ)
- Bootstrap methods
- Bootstrap, Bootstrapping
- Boxplot (or box plot)
- Bulimia Investigatory Test Edinburgh (BITE)
- Card sort methods
- Categorical/nominal data/scaling
- Causality & causal attribution
- Ceiling effect
- Cell and cell size
- Census
- Centiles
- Central location
- Change
- Clinical/non-clinical
- Cochrane (collaboration, library)
- Cohen’s kappa
- Common factors
- Compass
- Computer intensive statistics/methods
- Confidentiality
- Confirmatory factor analysis
- Confounding
- Controlled trials
- Copyleft
- Copyright
- CORC: Child Outcomes Research Consortium
- CORE instruments
- CORE measures
- CORE system
- CORE-10
- CORE-6D
- CORE-OM
- CORE: Clinical Outcomes in Routine Evaluation
- Corrected item-total correlations (CITCs)
- Correlation
- Cramer von Mises test
- Cumulative distribution
- Dataset and database
- De-anonymisation
- Dependent variable
- Discrete measures/variables
- Distribution
- Distribution shape
- Double blind
- Early termination
- ECM (Embedded Change Measurement)
- Effectiveness
- Efficacy
- Efficiency
- Empirical Cumulative Distribution Function (ECDF)
- Empirical research
- Error
- Estimate, estimation
- ESTs (Empirically Supported Treatments)
- Ethnicity
- Expectancy effects
- Face validity
- Factor analysis
- False negative (in screening)
- False negative rate/risk (inferential testing)
- False positive (in screening)
- False positive rate/risk (inferential testing)
- Floor and ceiling effects
- Gaussian (“Normal”) distribution
- Gender
- Generalisability
- GHQ: General Health Questionnaire
- Glasgow Anxiety Scale
- Glasgow Depression Scale
- Goal attainment scaling
- GULP
- Heteroscedasticity
- Hierarchical linear models/modelling (HLM)
- Hierarchical Linear Models/Modelling (HLM)
- Histograms and barplots
- Homoscedasticity
- Idiographic measure, Idiographic methods
- Independence of observations
- Independence of observations
- Independent variable
- Inferential testing, “tests”
- Informed consent
- Inter-quartile range (IQR)
- Inter-rater agreement/reliability
- Interaction
- Internal vs. external analyses
- Interval scaling
- Invalidity
- Investigator bias/allegiance
- Jackknife method
- Jittering
- Kappa
- Kendall correlation coefficient
- Kolmogorov-Smirnov test
- LD-CORE
- Maximum
- MCAR: Missing Completely At Random
- McDonald’s Omega
- Mean (arithmetic mean, average)
- Measure
- Median
- Medical model
- MICE: Multiple Imputation by Chained Equations
- Minimum
- Missing values, “missingness”
- Modality
- Mode, modal value
- Multilevel Models/Modelling (MLM)
- Multiple tests problem
- n > 5 rule
- Nested data, nesting
- Nocebo effect
- Nomothetic measures, Nomothetic data
- Non-parametric “tests”
- Notched box plot
- NPV (Negative Predictive Value)
- Null hypothesis
- Null hypothesis significance testing (NHST) paradigm
- Observation
- Open access
- Open data
- Open peer review
- Open source software
- Opting out
- OQ (Outcome Questionnaire) system
- Ordinal scaling
- Outlier
- Overprinting
- p value
- Paired or within person tests
- Parametric “tests”
- PBE: Practice Based Evidence
- Peer reviewing / peer reviews
- Percentiles
- Person’s Relating to Others Questionnaire (PROQ)
- Placebo effect (and placebos)
- Population
- Post hoc hypothesis
- PPV (Positive Predictive Value)
- Practice Research Network (PRN)
- Pre hoc hypothesis
- Predictive value
- Predictor variable
- Principal/Chief investigator
- Protocol paper
- Proxy measure
- Pseudonymisation
- PSYCHLOPS (Psychological Outcome Profiles)
- Publication bias
- qq (quantile-quantile) plot
- Quantiles
- Quartiles
- R project
- Random coefficients regression
- Randomisation
- Randomised controlled trial (RCT)
- Range
- Ranking
- Ratio scale/scaling
- Re-identification
- Rectangular data
- Reliable Change Index (RCI)
- Repertory grid
- ReQoL (Recovering Quality of Life)
- Research
- Robustness & robust tests
- Sample
- Sample size, n
- Sampling and sample frame
- Scatterplot/scattergram
- SCORE-15 (Systemic CORE)
- Screening
- Self-report measure
- Sensitivity (in screening)
- Sensitivity analyses
- Sensitivity to change
- Shapiro-Francia test
- Shapiro-Wilk test
- Shiny (server & apps)
- Simulation
- Skew (skew distribution)
- Smallest identical subset
- SMART principles
- Spearman correlation coefficient
- Specificity (in screening)
- Spread
- SPSS
- Standard Deviation (SD)
- Statistic
- Statistical software
- Stevens’ levels of measurement
- Stochastic
- Strathclyde Inventory
- Strengths and Difficulties Questionnaire (SDQ)
- Subpopulation
- Subset/subgroup
- Tests of fit to a distribution
- Ties
- Type I error
- Type II error
- Uniform distribution
- User generated measures
- Validity
- Values based evidence (VBE)
- Variable
- Variance
- Violin plot (or violinplot)
- Visual analogue scale (VAS)
- Work and Social Adjustment Scale (WSAS)
- YP-CORE

Page last updated 23.viii.23, author CE, for the moment the page and contents of the glossary are copyright to me. That may change to a Creative Commons licence later when I am happier with the content.