observational series
101Geostationary Operational Environmental Satellite — The Geostationary Operational Environmental Satellite (or GOES) program is a key element in United States National Weather Service (NWS) operations. GOES weather imagery and quantitative sounding data are a continuous and reliable stream of… …
102Natural experiment — A natural experiment is an observational study in which the assignment of treatments to subjects has been haphazard: That is, the assignment of treatments has been made by nature , but not by experimenters. Thus, a natural experiment is not a… …
103Arj Barker — Infobox actor name = Arj Barker imagesize = caption = birthdate = birth date and age|1971|4|18 location = San Francisco, California, U.S. height = birthname = Arjun Singh spouse = death date = death place = occupation = Actor Comedian salary =… …
104Mathematics education — A mathematics lecture at Aalto University School of Science and Technology. Educational Research …
105Alternative comedy — is a style of comedy that originated in the United Kingdom in the late 1970s and 1980s [ [http://www.brooklynpaper.com/stories/26/45/26 45piehole.html The Brooklyn Paper: SERIOUS FUN ] ] which would eventually go on to become mainstream in the… …
106Astronomical Society of the Pacific — Abbreviation ASP Formation 1889 Legal status Non profit organization Purpose/focus scientific research and public education in astronomy Location …
107Longitudinal study — A longitudinal study is a correlational research study that involves repeated observations of the same items over long periods of time often many decades. It is a type of observational study. Longitudinal studies are often used in psychology to… …
108Cross-sectional study — Cross sectional studies (also known as Cross sectional analysis) form a class of research methods that involve observation of all of a population, or a representative subset, at one specific point in time. They differ from case control studies in …
109Confounding — factor redirects here. For other uses, see Confounding factor (disambiguation). In statistics, a confounding variable (also confounding factor, lurking variable, a confound, or confounder) is an extraneous variable in a statistical model that… …
110Crossover study — A crossover study (also referred to as a crossover trial) is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies can be observational studies, many important crossover studies… …
