Medical Device Categorisation, Classification and Regulation in the United Kingdom (updated for 2026)
Contributor: Sana Shaikh Medical Device Categorisation, Classification and Regulation in the United Kingdom Having a thorough understanding of the classification and class of your medical device is vital for navigating the appropriate regulatory assessment route and achieving market authorisation. While the scope of medical devices is incredibly broad, for regulatory purposes in the UK, they are classified based on device type, duration of use, and level of risk. All…
Latent Variable Modelling And The Chi Squared Exact Fit Statistic
Latent variable models are statistical tools used extensively throughout clinical and experimental research in medicine and the life sciences. Disciplines such as psychology and neuroscience routinely employ these models to answer complex research questions ranging from the impact of personality traits on workplace success (1) to measuring inter-correlated activity in neural populations based on neuroimaging data (2). Through latent variable modelling, dispositions, states, or processes that must be inferred…
Transforming Skewed Data: How to choose the right transformation for your distribution
Innumerable statistical tests exist for application in hypothesis testing based on the shape and nature of the pertinent variable’s distribution. If however the intention is to perform a parametric test - such as ANOVA, Pearson’s correlation or some types of regression - the results of such a test will be more valid if the distribution of the dependent variable(s) approximates a Gaussian (normal) distribution and the assumption of homoscedasticity…
Accessing Data Files when Using SAS via Citrix Receiver
A SAS licence can be prohibitively expensive for many use cases. Installing the software can also take up a surprising amount of hard disk space and memory. For this reason many individuals with light or temporary usage needs choose to access a version of SAS which is licenced to their institution and therefore shared across many users. Are you trying unsuccessfully to access an SAS remotely via your institution…