BIOL 1005 Lecture Notes - Lecture 2: Falsifiability, Endocrine Disruptor
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*now we come up with a way of testing see if the null or alternate is correct. Control group: test subjects and expose them to normal environmental conditions. Experimental group: expose subjects to different levels of endocrine disruptors (maybe. Run test through a number of reproductive cycles to look what happens to gender ratio. But there are ethical issues, an example of this is the issue of smoking causing cancer this has never been experimentally tested, so exposing children to smoking is not ethical. Correlational testing, correlation meaning a statistical relationship between variables. As we observe a change in endocrine disruptor concentration w/n a river we observe a change in gender ratio. Correlational observations often lead to experimental testing. Hypothesis: a testable statement that attempts to explain an observation or set of observations. Theory: a well-substantiated explanation of some aspect of the natural world; incorporate facts, laws, inferences, and tested hypotheses; explanations proposed to interpret or incorporate facts.
