F distribution: probability distribution of an F-ratio when the null hypothesis is true. rozkład F

Fabrication: 1. (ethics) act of making up data, experiments or other significant information in proposing, conducting or reporting research; zmyślanie, fabrykowanie 2. (engineering) producing something. wytwarzanie

Face validity: judgment of the validity of reasonableness of a measurement or model based on its examination by persons with expertise in the health problems and intervention being measured or modelled. trafność fasadowa

Facilitate: to make something easy or easier. ułatwiać

Facilitator: person who helps a team with teamwork, communication, and problem-solving; should not contribute to the content of the team's project, focusing instead on the team's functioning as a group. moderator

Facility: place, usually including buildings, used for a particular purpose or activity, e.g. health care facility. zakład, centrum, ośrodek, baza, obiekt

Factor: event, characteristic, or other definable entity that brings about a chance in a health condition or other defined outcome. czynnik

Factor analysis: set of statistical methods for analysing the correlations among several variables in order to estimate the number of fundamental dimensions that underlie the observed data and to describe and measure those dimensions. analiza czynnikowa

Factors of production: inputs (land, labour, capital, materials) into the production process. czynniki produkcji

Facultative: able to grow or develop either in the presence or absence of a specific environmental factor (e.g. oxygen).