ACE-Expert key terms
ACE-Expert · Get comfortable with the vocabulary.
- Item Bank
- Related: Item Metadata, Form Assembly
A managed, searchable collection of test questions stored with metadata such as content area, difficulty, and exposure history, used to assemble forms and support reuse across administrations.
- Item Metadata
- Related: Item Bank, Content Blueprint
Structured descriptive data attached to each question, including content classification, cognitive level, answer key, statistics, and usage history, enabling search, auditing, and informed form construction.
- Content Blueprint
- Related: Test Specification, Content Validity
A specification that defines the proportion of test content allocated to each domain, task, or cognitive level, ensuring forms represent the intended construct consistently across administrations.
- Test Specification
- Related: Content Blueprint, Form Assembly
A document describing the overall design of an exam, including purpose, target population, length, item formats, blueprint weights, scoring rules, and administration conditions.
- Job Analysis
- Related: Content Validity, Subject Matter Expert
A systematic study of a profession that identifies the tasks performed and knowledge required, providing the empirical foundation for defining exam content and validating the blueprint.
- Subject Matter Expert
- Related: Job Analysis, Item Review
A qualified practitioner or educator who contributes professional judgment to activities such as item writing, content review, standard setting, and defensibility of exam content decisions.
- Item Review
- Related: Subject Matter Expert, Item Writing
A structured evaluation of drafted questions by qualified reviewers to check accuracy, clarity, fairness, alignment to the blueprint, and absence of construct-irrelevant difficulty before field testing.
- Item Writing
- Related: Item Review, Distractor
The process of composing questions that measure a defined objective with clear, concise stems, plausible distractors, and a single defensible correct answer, following established editorial guidelines.
- Distractor
- Related: Item Difficulty, Item Discrimination
An incorrect response option designed to attract examinees who lack the targeted knowledge while appearing plausible to those who possess it, thereby supporting score discrimination.
- Item Difficulty
- Related: Item Discrimination, Classical Test Theory
A statistic describing how hard a question proved for a group, commonly the proportion of examinees answering correctly, with values near one indicating an easy item.
- Item Discrimination
- Related: Item Difficulty, Point-Biserial Correlation
An index of how well a question separates higher-scoring examinees from lower-scoring ones, often computed as a point-biserial correlation or an item response theory slope parameter.
- Point-Biserial Correlation
- Related: Item Discrimination, Classical Test Theory
A correlation between a dichotomous item score and a continuous total test score, used in classical analysis to indicate how strongly an item aligns with overall performance.
- Classical Test Theory
- Related: Item Response Theory, Reliability
A measurement framework modeling an observed score as the sum of a true score and random error, yielding familiar statistics such as difficulty, discrimination, and reliability coefficients.
- Item Response Theory
- Related: Classical Test Theory, Test Information Function
A family of probabilistic models relating the chance of a correct response to latent examinee ability and item parameters, enabling item-level information and equating across forms.
- Test Information Function
- Related: Item Response Theory, Standard Error of Measurement
A curve describing how precisely a test measures ability across the latent trait continuum, derived from item parameters and used to evaluate measurement precision at cut scores.
- Reliability
- Related: Standard Error of Measurement, Classical Test Theory
The consistency of scores across items, occasions, or raters, often expressed as an internal consistency coefficient or through generalizability analysis of measurement error.
- Standard Error of Measurement
- Related: Reliability, Cut Score
An estimate of the typical magnitude of error in an individual score, used to build confidence intervals around observed scores and to interpret score differences cautiously.
- Content Validity
- Related: Content Blueprint, Job Analysis
Evidence that test content adequately represents the knowledge and skills defined by the blueprint, established through expert review and alignment studies rather than statistical correlation.
- Construct Validity
- Related: Content Validity, Differential Item Functioning
The degree to which scores and their proposed interpretations reflect the intended underlying ability rather than unrelated factors, supported by accumulating evidence across multiple sources.
- Differential Item Functioning
- Related: Item Bias Review, Construct Validity
A statistical condition in which examinees of equal ability but different group membership have differing probabilities of answering an item correctly, signaling potential bias requiring review.
- Item Bias Review
- Related: Differential Item Functioning, Fairness
A structured process combining statistical DIF results with expert judgment to detect and remediate content that unfairly disadvantages members of a particular subgroup.
- Fairness
- Related: Item Bias Review, Test Accommodation
The principle that an exam and its uses are equitable across examinee groups, free of construct-irrelevant barriers, and supported by accessibility, bias, and validity evidence.
- Test Accommodation
- Related: Fairness, Test Security
A modification to administration conditions or response format, such as extended time, intended to remove disability-related barriers without altering the construct being measured.
- Test Security
- Related: Item Exposure, Test Accommodation
Policies and practices protecting exam content and scores from compromise, including controlled access, secure delivery, monitoring for leakage, and investigation of suspected irregularities.
- Item Exposure
- Related: Test Security, Form Assembly
The frequency with which a particular question has been administered, tracked to limit overexposure, reduce memorization risk, and preserve the integrity of the item pool.
- Form Assembly
- Related: Item Bank, Test Specification
The process of selecting items from the bank to construct a test form that satisfies blueprint constraints, statistical targets, and exposure limits while maintaining parallel difficulty across forms.
- Equating
- Related: Cut Score, Item Response Theory
A statistical procedure that places scores from different test forms onto a common scale so they can be interpreted interchangeably despite differences in form difficulty.
- Cut Score
- Related: Standard Setting, Standard Error of Measurement
The score threshold on a test scale that separates examinees classified as meeting a performance standard from those who do not, established through a defensible standard-setting process.
- Standard Setting
- Related: Cut Score, Modified Angoff Method
A structured judgmental procedure in which qualified panelists recommend a passing score by evaluating content difficulty and expected performance of minimally competent candidates.
- Modified Angoff Method
- Related: Standard Setting, Cut Score
A standard-setting technique in which panelists estimate, for each item, the probability that a barely qualified examinee answers correctly, with estimates summed and refined through discussion rounds.
- Bookmark Method
- Related: Standard Setting, Item Response Theory
An item-response-theory-based standard-setting approach in which panelists place a bookmark on an ordered item booklet to indicate the point where borderline candidates would likely succeed.
- Minimally Competent Candidate
- Related: Standard Setting, Cut Score
The hypothetical examinee whose knowledge and skill just meet the performance standard, serving as the reference point for panelists' judgments during standard-setting exercises.
- Standard-Setting Panel
- Related: Standard Setting, Subject Matter Expert
A group of qualified subject matter experts convened to make passing-score recommendations, selected for relevant expertise and balanced representation across practice settings and demographics.
- Pretesting
- Related: Item Difficulty, Item Bank
Embedding unscored new items in operational administrations to collect response data for evaluating difficulty, discrimination, and functioning before the items enter the scored pool.
- Item Analysis
- Related: Item Difficulty, Distractor
The statistical examination of examinee responses to each question, producing difficulty, discrimination, distractor performance, and flagging of malfunctioning items for review.
- Program Evaluation
- Related: Quality Improvement, Test Specification
Systematic assessment of whether a certification or testing program achieves its intended purposes, using metrics such as pass rates, candidate satisfaction, and stakeholder impact.
- Quality Improvement
- Related: Program Evaluation, Item Analysis
An ongoing cycle of measuring program performance, identifying weaknesses, implementing corrective actions, and verifying results to strengthen exam validity and operational efficiency.
- Test Administration Manual
- Related: Test Security, Test Accommodation
A document specifying standardized procedures for proctors and staff, including candidate check-in, timing, security protocols, and reporting of irregularities to ensure consistent conditions.