scientific method Flashcards

1
Q

what is scientific method?

A

acquiring or testing knowledge through systematic observation (empirical method) or experiments

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2
Q

what is the empirical method?

A

obtaining information on the basis of observation

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3
Q

what is the definition of a theory?

A

set of explanatory principles to make sense of a range of empirical findings

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4
Q

what are the 2 things that theories do?

A
  1. help gather and account for multiple facts

2. enable predictions to be made (hypotheses)

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5
Q

what is an hypotheses?

A

statement of a cause effect relationship between variables

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6
Q

what is induction?

A

drawing conclusions and developing theories based on accumulated observations

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7
Q

what are the 5 principles of good research?

A
reliability
validity
parsimoney
cumulative
public
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8
Q

what is reliability?

A

having the confidence that research findings will be replicated every time and not be a ‘fluke’

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9
Q

what is validity?

A

having the confidence that the findings shows what it is interpreted to show

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10
Q

what is parsimony?

A

theories that use the smallest amount of principles to explain the largest number of facts

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11
Q

what does cumulative mean?

A

using previous research to guide the content and method of future research

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12
Q

what does public mean?

A

opening your research and findings up for public scrutiny to check the validity and reliability of it

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13
Q

7 principles of science?

A
determinism
systematic observations
public knowledge
data-based conclusions
tentative conclusions
asks empirical questions
falsifiable
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14
Q

what is determinism?

A

the belief that all events have causes

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15
Q

what is probabilistic determinism?

A

the probability of a certain outcome

not 100% relationship between cause and effect

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16
Q

does free will mean rejecting the idea of determinism?

A

no, as it is argued you have to know the cause and effect of a decision to make the decision

17
Q

what are systematic observations?

A

variables and method of observing them are clearly defined to allow for exact replication and inter-rater reliability

18
Q

what does public knowledge entail?

A

research should be verifiable by more than 2 observers and procedures should be replicated

19
Q

what are tentative conclusions?

A

conclusions that provide support but not proof for a theory

20
Q

what does falsifiable mean?

A

hypotheses should be open and able to be proved wrong

21
Q

what can theories do?

A

account for multiple facts
generate predictions about what might happen in novel situations
explain and describe phenomenon

22
Q

what is deduction?

A

developing a hypothesis from a theory

23
Q

how to support the validity of a theory?

what does it mean if results are consistent with the hypothesis?

what does it mean if results aren’t consistent with the hypothesis?

A

deduce hypotheses from the theory
design a study to test the hypothesis
collect and analyse the data from the study
determine if the data is consistent with the hypothesis

YES? theory is given inductive support. deduce more hypotheses to test the theory further

NO?theory is not supported but doesn’t mean it has been disproven (could be methodological flaws or flaws in the hypothesis). test again and if repeatedly inconsistent, revise/abandon the theory

24
Q

connection between theories and facts

A

theory never becomes fact

theory serves to explain facts

25
Q

what are 4 other ways of developing research other than theories?

A
  1. through observation
  2. serendipity (in the right place to notice something)
  3. everyday problems needing a solution
  4. replication and extension of existing research e.g extend findings to another group
26
Q

what is a circular argument?

A

an argument in which the thing to be explained is presented as the explanation (memory explained by memory ability)