Explore science by method, field &amp; evidence.

CLES+T

The CLES+T is a 34-item self-report questionnaire measuring nursing students' perceptions of their clinical learning environment and the quality of supervision received from their clinical preceptor or teacher. Originally developed by Saarikoski and colleagues in 2007 and expanded in 2008 to include a specific teacher

2 sources2007

CTQS

The CTQS is a self-report questionnaire measuring students' perceptions of their clinical educator's (preceptor, clinical instructor, or mentor) teaching quality and effectiveness. Developed by Ohrling, Hallberg, and Gaberson in the early 2000s, the CTQS evaluates dimensions of clinical teaching including role modeling

2 sources2001

DASH

The DASH is a 20-item observer-rated instrument measuring the quality of debriefing—the structured, facilitated reflection following a healthcare simulation activity. Developed by Rudolph, Simon, and Raemer in 2006 at Massachusetts General Hospital, the DASH evaluates the debriefing facilitator's ability to create a ps

2 sources2006

Effect Size in Education Research

An effect size is a standardized, scale-free measure of the magnitude of a difference or relationship — how big an effect is, not just whether it is statistically significant. In education research it is the common currency for reporting intervention impacts and for combining studies in meta-analysis, with the standard

2 sources1988

GRM

The Graded Response Model is an item response theory model developed by Fumiko Samejima in 1969 for ordered polytomous items such as Likert-type scales. It estimates both the discriminating power of each item and a set of threshold parameters marking the boundaries between adjacent response categories, while simultaneo

2 sources1969

IPCS

The IPCS is a self-report questionnaire measuring healthcare professionals' and students' attitudes, beliefs, and behaviors regarding interprofessional collaboration and teamwork. Developed through research by Hind and colleagues in 2003 and refined in subsequent interprofessional education studies, the IPCS evaluates

2 sources2003

NCCS

The NCCS is a multidimensional self-assessment and clinician-rated instrument measuring nursing students' perceived and observed clinical competence across technical, interpersonal, and cognitive domains. Developed by Walt and van der Walt in 2009, the scale evaluates students' mastery of fundamental nursing skills, cr

2 sources2009

Ordinal Content Validity

Ordinal content validity replaces the traditional binary (yes/no) expert relevance judgment with a graded, Likert-type rating scale, allowing richer expert opinion to be captured when evaluating whether scale items adequately represent the intended construct domain.

2 sources2003

Ordinal IRT

Ordinal item response theory (ordinal IRT) comprises a family of probabilistic models — most notably the Graded Response Model and the Partial Credit Model — that relate a respondent's standing on a latent trait to the probability of choosing each ordered response category on a polytomous item. It extends classical IRT

2 sources1969

PIS

The PIS is a self-report questionnaire measuring healthcare students' sense of professional identity, belonging, and commitment to their chosen discipline. Developed by Adams and colleagues in 2006, the PIS assesses the degree to which students have internalized professional roles, values, behaviors, and career commitm

2 sources2006

Polytomous DIF

Polytomous differential item functioning detects whether a test or survey item with more than two ordered response categories (e.g., Likert-type scales, partial-credit items) functions differently across groups such as gender, ethnicity, or language background, after controlling for the latent trait being measured. It

2 sources1990

Polytomous item analysis

Polytomous item analysis examines the psychometric behavior of items that have more than two ordered response categories — such as Likert-type scales or partial-credit tasks. It evaluates each item's difficulty thresholds, discriminating power, and category functioning to determine whether the full response scale is be

2 sources1969

Propensity Score Matching in Education

Propensity score matching estimates the causal effect of an educational treatment from observational data by pairing treated students, schools, or teachers with comparison units that had the same probability of receiving the treatment given their observed characteristics. Introduced by Rosenbaum and Rubin, it collapses

2 sources1983

PSCS

The PSCS is a self-report instrument measuring healthcare students' and professionals' self-perceived competence in patient safety practices, safety awareness, and safety culture engagement. Developed by Lachman and informed by James Reason's theoretical framework of human error and systems thinking, the PSCS evaluates

2 sources2012

RIPLS

The RIPLS is a 19-item self-report questionnaire designed to measure healthcare students' attitudes and readiness toward interprofessional learning and collaboration. Developed by Parsell and Bligh in 1999, it assesses three core dimensions of interprofessional readiness: teamwork and collaboration, professional identi

1 source1999

RPQ

The RPQ is a self-report instrument measuring the degree to which healthcare students and professionals engage in reflective practice—the deliberate examination of their clinical experiences, decisions, and actions to extract learning and improve future practice. Developed by Sobral and refined by Saarikoski and collea

2 sources2000

SCPS

The SCPS is a self-report questionnaire measuring students' overall satisfaction with their clinical placement experience, including satisfaction with the learning environment, educator support, clinical opportunities, and facility resources. Originally developed by Papastavrou and colleagues in Cyprus (2007–2010), the

2 sources2007

Single-Case Design in Education

Single-case experimental designs establish whether an intervention causes a change in behavior or learning by intensively studying individual cases over time rather than comparing groups. Each case serves as its own control: an outcome is measured repeatedly during a baseline phase and again under intervention, and the

2 sources2013