The Clinical Decision Making Survey (CDMS)

Abstract

The Clinical Decision Making Survey (CDMS) is a specialized, 14-item instrument developed in 1991 to assess the complex clinical decision making processes utilized by nursing professionals, particularly those facing patients with acute or chronic pain. The scale aims to provide quantifiable insight into the factors that influence nurses’ judgments regarding pain management, including responses to potential ethical dilemmas such as over-medication, under-medication, and managing opioid side effects. Developed by experts including Ferrell and McCaffery, the CDMS remains a relevant tool for research into nursing practice, education, and ethical competence in pain control settings.

Keywords

clinical decision making, nursing, pain management, ethical dilemmas, survey, Ferrell, opioid, assessment tool.

Authors

Ferrell, B. R., Eberts, M. T., McCaffery, M., Grant, M.

Purpose

The primary purpose of the Clinical Decision Making Survey (CDMS) is to systematically gather empirical data from nurses concerning the cognitive and situational elements that shape their clinical judgments in pain management contexts. This includes understanding their perceived barriers, ethical considerations, and procedural choices when administering or withholding analgesics.

The 14 items are specifically designed to map the complexity inherent in managing patient discomfort, where decisions often intersect with resource limitations, institutional protocols, and the management of potent medications like opioids. The overall objective of using the CDMS is to identify areas where education or policy reform is needed to ensure effective and ethical pain relief practices in clinical settings.

Construct

The CDMS primarily measures the construct of Clinical Decision Making (CDM) specifically applied to the domain of pain management. This construct encompasses several critical dimensions of professional judgment, including the nurse’s ability to assess fluctuating patient symptoms, weigh the risks and benefits of various interventions, and navigate associated ethical dilemmas concerning pain relief.

The underlying theoretical framework supports the idea that effective clinical judgment in this domain requires integration of technical knowledge (pharmacology, physiology), practical experience, and ethical reasoning (adherence to principles of patient autonomy and beneficence). The survey items probe these situational and ethical dimensions of professional nursing practice.

Validity

While detailed psychometric reports are typically required for a complete assessment of validity, instruments developed by recognized experts in the field, such as the authors of the CDMS, generally possess strong Content Validity. This form of validity is typically established through expert panel review, ensuring that the 14 items comprehensively cover the critical aspects of clinical decision making relevant to pain management and ethical conflict.

For research purposes, Construct Validity would be established by correlating CDMS scores with established measures of ethical reasoning, clinical experience, or objective knowledge tests related to pharmacology and pain assessment. This process confirms that the CDMS measures the intended psychological construct of specialized clinical judgment.

Reliability

The Reliability of the CDMS, particularly its internal consistency, is essential for its utility as a research instrument. Internal consistency, typically quantified using Cronbach’s Alpha, confirms that all 14 items are homogeneous and consistently measure the same underlying construct—clinical judgment in pain contexts.

For similar scales used in nursing research, an acceptable level of internal consistency usually requires an alpha coefficient of 0.70 or higher. Furthermore, Test-retest reliability studies would be necessary to confirm the temporal stability of the nurses’ decision-making patterns as measured by the CDMS over time.

Factor Analysis

Given the complexity inherent in clinical decision making, particularly when involving high-stakes issues like opioid administration and ethical conflicts, a Factor Analysis of the CDMS is crucial for determining its internal structure. It is likely that the analysis would reveal multiple underlying factors rather than a single, unified scale score.

Potential factors extracted might correspond to distinct areas of decision-making: for example, an Ethical Conflict Factor (measuring responses to over- or under-medication dilemmas), a Procedural Factor (related to adherence to protocols and communication), and a Resource/Knowledge Factor (reflecting knowledge deficits or systemic barriers). Identifying these factors allows researchers to generate meaningful subscale scores for targeted interventions.

Instrument

Test Type: Self-report survey; Quantitative assessment of professional judgment and situational responses.

Format: 14-item questionnaire, typically employing a structured response format (e.g., Likert-type scale) to gauge frequency, agreement, or likelihood of certain clinical actions.

Language Available: English (Original development language).

Population Group: Professional Nurses (Registered Nurses, Licensed Practical Nurses).

Age Group: Adult professionals (typically 21 years and older).

Population Details: Specifically designed for nursing staff working in environments where acute or chronic pain management and associated ethical dilemmas are routine, such as oncology, palliative care, or critical care settings.

Test Methodology: The CDMS is usually administered either via a traditional paper-and-pencil format or through contemporary electronic platforms. Scoring involves calculating total scores or subscale scores based on the predetermined weighting of the 14 items.

Keywords

assessment, healthcare ethics, nursing practice, pain control, survey instrument, psychometrics, oncology.

Authors

Author ORCID Identifier: Not publicly available in key references.

Affiliation Email addresses: Contact authors via institutional affiliation (e.g., City of Hope National Medical Center, where B.R. Ferrell was affiliated).

Correspondence Address: Refer to the primary publication for institutional affiliation details.

Permissions & Fee and Test Year

The Clinical Decision Making Survey (CDMS) was initially developed and published in 1991. Researchers and practitioners seeking to use the instrument should contact the primary author, Betty R. Ferrell, or the journal publisher (Lippincott Williams & Wilkins/Wolters Kluwer Health) to determine current licensing requirements, permissions, and any associated usage fees. It is generally expected that academic use requires proper citation and potential permission clearance.

Reference’s

Ferrell, B. R., Eberts, M. T., McCaffery, M., Grant, M. (1991). Clinical decision making and pain. Cancer Nurs. 1991 Dec;14(6):289-97.

The original PDF of the scale documentation, titled The Clinical Decision Making Survey (CDMS), can be downloaded here: PDF Download Link.

Items of the The Clinical Decision Making Survey (CDMS)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The 14 specific items comprising the Clinical Decision Making Survey (CDMS) are contained within the full instrument documentation referenced above. These items typically present situational vignettes or statements related to common dilemmas in pain management, such as assessing inadequate pain relief, handling conflicting physician orders, managing patient requests for increased medication, and addressing ethical conflicts related to opioid use.