features of science Flashcards
how many key features of science are there
7
what are the key features of science
1) hypothesis testing
2) empirical evidence
3) falsifiability
4) replicability
5) control
6) objectivity
7) theory construction
how do we test the hypothesis
using the scientific process
what do researchers do while using scientific processes
researchers collect results, then they interpret the results to reach a conclusion
what is hypothesis testing
the key feature of science is hypothesis testing, which means we use the scientific process to test the hypothesis
if hypothesis testing leads to results that don’t support the hypothesis, researchers need to…
adjust their hypothesis
what is the first feature of science
hypothesis testing
what is empirical evidence
information collected through direct observations
what is falsifiability
to test an hypothesis it must be possible to prove it false
what does it mean if an hypothesis isn’t falsifiable
it’s not scientific
what does replicating a study mean
repeating the study to re-test the hypothesis
if a result is replicated this means
a replicated study had the same results
what is a falsifiable hypothesis
is one that can be proven false, using the scientific process
what does science involve
science involves comparing an experimental group to a control group
what is a control group
a level of the IV which is not manipulated by the researcher
what is an experimental group
the level of the Iv where the researcher does manipulate the iv
why must experiments have a control group
we need something to compare to the experimental group
what happens when a experimenter stops extraneous variables from affecting their results
the researcher has controlled the extraneous variables
what are extraneous variables
something other than what we are studying which affects the DV
What is a confounding variable
extraneous variable varies according to the level of the IV.
how is an extraneous variable also a confounding variable
it varies according to the level of the IV
what does objectivity mean
a researcher must not let personal bias affect the way they carry out the experiment
what is meant by control in the context of scientific research
Control in an experiment refers to whether the experiment is using a control group, and whether extraneous variables have been controlled.
what is meant by falsifiability as a feature of science
Falsifiability is when the hypothesis we are testing can be proved false.
