experimental technique Flashcards
1
Q
what is the independant variable?
A
the one condition that you change in an experiment
2
Q
what is the dependant variable?
A
the variable that you measure or observe
3
Q
what is the controlled/constant variable?
A
a variable that does not change during an experiment
4
Q
how can reliability be improved?
A
- using accurate methods, tools and measurements
- repeating the experiment under the same conditions multiple times and calculating an average of results
- use precise and accurate instruments to measure variables
5
Q
what is the purpose of a control?
A
- to compare the effects of an independant variable on a dependant variable
- compare against other test results
