scientific method Flashcards
basic patterns and processes are uniform across time and space
uniformitarianism
when two plausible explanations are reasonable the simpler one is preferable
parsimony
we can learn about the world by careful observation of empirical phenomena
empiricism
knowledge changes as new evidence appears and explanations change with new evidence
uncertainty
tests and experiments should be repeatable if the same results cannot be reproduced, then the conclusions are probably incorrect
repeatability
we rarely expect science to provide absolute proof that a theory is correct because new evidence may always undermine our current understanding
proof is elusive
used to find out if a theory is correct
testable question
correctness of measurements
accuracy
repeatability of results
reproducabilty
repeating studies of tests
replication
a testable explination
hypothesis
explanation that has been supported by a large number of tests and is considered by experts believable
scientific theory
identify question, form testable hypothesis, collect data to test hypothesis, interpret results, report for peer review, publish findings
scientific method
involves observation of events that have already happened
natural experiment
manipulative experiementconditions are deliberately altered for one variable and all other variables are held constant
manipulative experiement