In observational research in the general population, however, a continuum approach may be more useful than use of a qualitative cut-off point.

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In fields such as epidemiology, social sciences, psychology and statistics, an observational study draws inferences from a sample to a population where the independent variable is not under …

observational是英语形容词，主要释义为"涉及通过仔细观察某人或事物以获取信息的"。 该词在英式英语中发音为/ˌɒbzəˈveɪʃənl/，美式发音为/ˌɑːbzərˈveɪʃənəl/。

5. With the observational method (sometimes referred to as field observation) animal and human behavior is closely observed. 通过 观察 法 （有时 也 称为 现场 勘察）， 研究者 能够 紧密 观 …

Observational means relating to the watching of people or things, especially in order to learn something new.

5 : the condition of one that is observed under observation at the hospital observational ˌäb-sər-ˈvā-sh (ə-)nəl -zər- adjective

Observational definition: of, relating to, or founded on observation, especially founded on observation rather than experiment.. See examples of OBSERVATIONAL used in a sentence.

The core limitation of naturalistic or observational studies to examine the specific role of early experience is the stability of exposure to adverse environments.

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