lecture 3a Flashcards
scientific findings arent supposed to be accepted based on
who the scientist is or who is funding the research
what is discovery science
science that is describing nature based on qualitative date (no experiments)
what is hypothesis based science
science that explains nature using quantitative data (using experiments)
what are the seven steps of the scientific method
- make observations
- ask questions
- form a hypothesis
- make a prediction
- test the prediction (plan and perform experiments to collect data)
- interpret data
- draw conclusions
what is a hypothesis
educated guess/tentative explanation
a hypothesis must be
falsifiable (can be right or wrong)
should you say that the hypothesis is right
no you have to say that the data supports the hypothesis
what is a theory
a well sustained explanation for a set of verified hypotheses
independent variable
variable being manipulated
dependent variable
variable that is being tested
control variable
variable that is the same in the experimental and control group
control group
group that is used to compare to the experimental group (doesn’t get treatment)
how do we avoid biases
neither the researchers or groups know who got the drugs or the placebo
what is a replicate and why is it important
experiment being done multiple times to see the variability in the data obtained and to verify the experiment
how do ethics play into science
don’t change data, write everything down to allow reproduction and take care of living things and avoid contamination of viruses