Endursöfnun

Endursöfnun is an Icelandic noun formed from endur- meaning “again” and söfnun meaning “collection.” It denotes the act of collecting or gathering something again. In general usage, endursöfnun can refer to re-collection of items, data, samples, or information after an initial collection period.

In research methodology, endursöfnun is commonly used to describe repeat data collection or follow-up sampling. It is often employed to improve data quality, assess changes over time, or fill gaps from an earlier round of collection. The term is frequently paired with phrases such as endursöfnun gagna (re-collection of data) or endursöfnun í rannsóknum (repeat sampling in studies). In cognitive psychology and everyday language, endursöfnun can also be used to refer to recollection or retrieval of memories, though this use is more metaphorical than in technical literature.

Usage of the term varies by field, and some disciplines may prefer terms like re-sampling, follow-up data collection, or data recall. The core idea of endursöfnun is re-collection to achieve comparability across time or conditions, typically by applying consistent protocols, sampling frames, and measurement methods in subsequent collection rounds. See also söfnun and the general prefix endur-.