Lesson 6 - Features of science - Replicability

Question 1

replicability

Answer 1

the extent to which the findings of research can be repeated in diff contexts and circumstances

Question 2

what conditions are needed for replicability to be valid

Answer 2

consistency over time

Question 3

what is the purpose of replicability

Answer 3

• guarding against scientific fraud
  -to check if results are a fluke
• to confirm validity

Question 4

one tailed hypothesis eg

Answer 4

if i eat choc ill be happy/ sad

Question 5

two tailed hypothesis eg

Answer 5

eating choc can affect happiness

Question 6

null hypothesis eg

Answer 6

there is no effect of choc on happiness

Question 7

falsifiability (Popper)

Answer 7

when other research has failed to support a theory or severely contradicts it

Question 8

how do researchers determine info as untrue

Answer 8

via experimental testing

Question 9

how are theories constructed

Answer 9

via hypothesis testing and retesting
- constructed based on the results of a range of work conducted by many researchers
- it can be rejected if results prove to be false

Question 10

deductive reasoning

Answer 10

1.having a theory
2. devise a hypothesis
3. test using empirical methods eg observations
4. draw conclusions

Question 11

hypothetico-deductive model

Answer 11

theories abt the world should come first and hypothesis generation comes later to see if the theory is correct

Question 12

stages of inductive reason

Answer 12

1. observe facts in the environment
2. develop a hypothesis
3. test hypothesis
4. draw conclusions
5. devise a theory based on this info

Question 13

difference between inductive and deductive reasoning

Answer 13

deductive reasoning starts with a theory , inductive reasoning ends with a theory