V Skill HF-D7.2-007 job-specific 10 skills
Psychometric analysis
Analyses test data for reliability, validity, item functioning and norms and judges whether an instrument fits its intended use.
How hrmforce measures this
- Assessment method
- Work sample test · rho 0.33 (SD 0.09)
- hrmforce instrument
- Work sample test, Portfolio
- Competency (50-framework)
- Judgment
- Trainability
- medium
- Demand outlook 2026 to 2030
- rising
The candidate performs a representative work sample under standardised conditions.
Behavioural anchors
| Level | Behaviour at this level |
|---|---|
| N1 Guided | Computes reliability measures and item statistics as prescribed and delivers the output to the responsible researcher. works under supervision and follows instruction · routine, one variable at a time · own task |
| N3 Proficient | Runs item and factor analyses on a test administration, assesses norm groups and advises on revising items or scales. sets own approach and seeks input proactively · several variables, some ambiguity · own team or process |
| N5 Leading | Sets psychometric quality requirements for the instrument portfolio and accounts for validity and fairness to clients and regulators. sets the standard and the policy · strategic, under high uncertainty · organisation, value chain or profession |
N2 and N4 are deliberately not anchored. Raters place them between the anchors, following the O*NET convention.
Underlying skills
These skills inherit the assessment route and the behavioural anchors of this construct.
| T | Skill | Definition | Demand outlook 2026 to 2030 |
|---|---|---|---|
| V | Calculating Cronbachs alpha Cronbachs alpha | Calculates the internal consistency of a scale and judges whether items measure the same construct sufficiently. | stable |
| V | Performing item analysis Item analysis | Analyses difficulty, discrimination and rest correlation per item and selects or revises items accordingly. | stable |
| V | Applying item response theory Item response theory · IRT | Models the probability of an item response as a function of ability and uses the parameters for test construction. | rising |
| V | Conducting factor analysis Factor analysis | Investigates with exploratory or confirmatory factor analysis which underlying dimensions an item set measures. | stable |
| V | Investigating differential item functioning Differential item functioning · DIF | Investigates whether an item functions differently across groups at equal ability and describes consequences for fair use. | rising |
| V | Constructing a norm group Norming · Norm group | Composes a norm group, calculates norm scores and describes for whom the norms are valid. | stable |
| V | Establishing reliability Reliability · Test retest | Determines reliability through repeated measurement, parallel forms or rater agreement and reports the standard error of measurement. | stable |
| V | Conducting validity research Validity study | Substantiates with content, constructs and criteria whether an instrument measures and predicts what it intends. | rising |
| V | Analysing adverse impact Adverse impact | Calculates selection ratios per group and judges whether a selection tool unintentionally excludes groups unequally. | rising |
| V | Weighting and combining assessment scores Score combination | Combines scores from several instruments into a judgement using predefined weights and decision rules. | rising |