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Internal consistency reliability assesses the extent to which the individual items of a multi-item scale measure the same underlying concept, and it is relevant when several items are combined into a single score. It is commonly summarised by statistics such as Cronbach's alpha or, for related purposes, split-half correlations, which reflect how strongly the items correlate with one another. High internal consistency supports the assumption that the items belong together and are tapping a common construct, though excessively high values may indicate redundancy among items. It is one of the standard psychometric properties examined, alongside test-retest reliability and validity, when developing and evaluating patient-reported outcome measures.

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Market Access Analytics and Insight

Our Market Research & Analysis service is uniquely tailored for the medical device & Life…

NICE HTA Strategy and Submission

NICE HTA Strategy and Submission

Navigate the complexities of NICE Health Technology Assessment (HTA) submissions with our expert strategic guidance.…

Health Economics and Outcomes Research (HEOR)

Health Economics and Outcomes Research (HEOR)

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Strategy Development

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Reimbursement Strategy and Support

Reimbursement Strategy and Support

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NHS Drug Tariff Submission Support

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Value Proposition Development for MedTech

Value Proposition Development for MedTech

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Primary Care Market Insights

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Stakeholder Engagement for Health Technologies

Stakeholder Engagement for Health Technologies

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Sustainability and NET Zero for MedTech

Sustainability and NET Zero for MedTech

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Evidence Generation and Management

Evidence Generation and Management

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Dashboard Tools for Market Access

Dashboard Tools for Market Access

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MedTech Sales Team Empowerment

MedTech Sales Team Empowerment

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NHS MedTech Business Case Formulation

NHS MedTech Business Case Formulation

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