kattavuutta

Kattavuutta is the noun form used in Finnish to describe the extent to which something covers, includes, or reaches a defined domain. It denotes breadth of scope, reach, or inclusiveness. The concept can refer to content coverage, geographic or demographic reach, or the coverage of possibilities in an analysis or system. The word derives from the verb kattaa, to cover, with the suffix -vuus indicating a state or quality.

In practice, kattavuutta is used across domains. In media and publishing, it describes how comprehensively topics, audiences, or regions are represented. In statistics and research, it measures how much of the population or data space is included in sampling or analysis; kattavuus can be expressed as a percentage or as a qualitative assessment. In healthcare, a screening program’s kattavuus refers to the share of the target population that is actually screened, rather than merely eligible.

Measuring kattavuutta involves clearly defining the scope and collecting relevant data. High kattavuutta implies broad coverage, but it does not guarantee quality; increasing breadth may reduce depth or increase costs. Conversely, low kattavuus can indicate gaps, bias, or limited access. The concept is often balanced against other considerations such as representativeness, accuracy, and feasibility.

Kattavuuden related terms include laajuus (scope), ulottuvuus (reach or extent), and peitto (coverage) in certain contexts. Understanding kattavuutta helps assess the usefulness, representativeness, and equity of a system, service, or study.