lecture 3 scientifique method

Question 1

what are the steps of the scientific method

Answer 1

1. make observations
2. ask questions
3. form hypothesis
4. make a prediction
5. test prediction (plan and perform ecpiriment, collect and analyse data)
6. interpret data: do results support of fail to support hypothesis
7. conslusion

Question 2

what is a prediction

Answer 2

educated guess bassed on the hypothesis, that can be directly tested

Question 3

what must the hypothesis be

Answer 3

falsifiable

Question 4

can you prove a hypothesis

Answer 4

no, never say hypothesis is right
it gains support, becomes more likely, the more it passes the tests

Question 5

what is a theory

Answer 5

well supported hypothesis might lead to a theory

well substantiated explanation for a set of varified hypothesis

Question 6

what is the independed variable

Answer 6

the one being tested

Question 7

what is the depended variable

Answer 7

output or response that is the resulth of changes with the indep variable

Question 8

what is a control variable

Answer 8

variables that are kept the same between experimental and control grouo

Question 9

what is a way to prevent biases

Answer 9

double blind test: neither group knows

Question 10

what are the contraints for sample size

Answer 10

• big enough to get accurate results, not big to the point where ressources will be wasted