NATS 1940 Lecture Notes - Lecture 4: Discovery Science, Scientific Control, Empiricism

• School: York University
• Department: Natural Science
• Course: NATS 1940
• Professor: Mark Vicari

Document Summary

Lecture 2: the scientific method cont"d; history of evolutionary thought; biological. Factor is the variable that affects the butterfly; presence or absence of spots. Researchers use control groups to cancel their effects of unwanted variables. E(cid:454) do(cid:374)"t keep (cid:272)ages i(cid:374) separate roo(cid:373)s a(cid:374)d tr(cid:455) to (cid:272)o(cid:374)trol te(cid:373)perature i(cid:374) ea(cid:272)h roo(cid:373) Do keep all cages in one room; even if temperature is precisely not controlled. = careful measurement and observation try to remain objective. Discovery science stronger focus on describing without experimentation. =descriptions of how something works if untested: model is considered a hypothesis if tested extensively and supported by the results; model is considered a theory. Summary; scientific method: observation, collection of data, measurement, anayliss of data, repeatability, hypothesis generation, experiment using controls despritive or discovery science hypothesis based science repeatability. There are really two worlds that exist in parallel: perceived world. Imperfect; not real, an illusion: ideal world, perfect, imperceptible.