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
comparing a treatment group to a control group which has not received the treatment
controlled study
researcher doesn’t know which group has been treated until after the data has been analyzed
blind experimentr
neither the subject nor the researcher know who is in the treatment group
double blind experiment
simple representations of phenomena used to study complex systems and predict the effect of conditions that are too difficult to create and control
model
networks of independent components and processes with materials and energy flowing from one component to another
systems
general agreement among informed scholars
scientific concensus
great changes in explanatory frameworks
paradigm shift
characteristics of a whole functioning system that are quantitatively or qualitatively greater than the sum of the systems parts
emergent properties
self contained and receives no inputs of energy or materials from the outside
closed system
system that takes inputs from its surroundings
open system
the energy and matter that flow into, through, and out of a system
throughput