features of science Flashcards
(17 cards)
constructing a theory
- Theory construction enables predictions to be made, can be turned into hypotheses and tested empirically
- The data obtained from using empirical methods can be used to support/reject the original theory
- This knowledge allows theory construction and testing to progress through the scientific cycle of enquiry
the induction phase
what is a theory
a set of general laws or principles that have the ability to explain particular events or behaviours
constructing a theory - the induction phase
- Carry out detailed observations in your area of interest
- Identify any patterns from the data you have collected
- Suggest a possible explanation for these patterns by generating a theory that will account for the observations
constructing a theory - scientific cycle of enquiry
Cycle of enquiry
1. A hypothesis is generated to test an element of a theory
2. Research is carried out in a controlled, objective way that allows for replication
3. Results are analysed and conclusions drawn. The hypothesis is supported or refuted.
4. Knowledge is validated through replication and peer review
5. The theory is supported/modified/refuted – Siffre’s is retested, e.g in a war bunker
6. Further research is undertaken
Known as the deduction phase
falsifiability
Popper – key criteria of a scientific theory
Genuine scientific theories should hold themselves up to hypothesis testing and the possibility of being proven false – those that survive attempts to falsify = are the strongest
‘pseudosciences’ = couldn’t be falsified
- ‘All swans are white’ – you can’t say that anything is true. This statement can be proven wrong by seeing just one black swan
falsifiable concepts in science
Ainsworth’s strange situation
it was used in multiple studies
Van Ijzendoorn and Kroonenberg - used it to study cultural variations in the patterns of attachment
32 studies using SS, used research from 8 cultures:
concepts that aren’t falsifiable
Freud’s unconscious mind
hidden mental processes that we are unaware of, which determine our choices and decisions
= untestable
paradigm
Kuhn
A set of shared assumptions and agreed methods within a scientific discipline
this is what separates sciences and non-sciences
Psychology is a pre-science, as there isn’t a universally accepted paradigm
Psychology has to go through a paradigm shift – a scientific revolution
example of paradigms
Biological explanantions of offending behaviour - Lombroso’s Atavistic features
Psychological explanations of offending behaviour - differential association
empirical method
Involves observations/experiments based on sensory/physical experiences rather than simply relying on thoughts and beliefs
Only behaviour that can be physically observed should be studied
empirical method synoptic example
Pavlov’s dogs experiment
observed the effects of associating a bell with food
objectivity
conducting research in an unbiased way - not influenced by personal feelings
objectivity synoptic example
Pavlov’s dogs
conducted it in a controlled lab setting
subjective synoptic example
Freud bases his theory on people reporting their own thoughts and feelings, interviews, and qualitative data - Little Hans
replicability
the ability to repeat a piece of research, falsify it = testing the validity
Controlled, standardised
replicable synoptic example
Asch’s study on conformity
had variations to test the concept
Involves: size of the majority influence and task difficulty
can’t be replicated synoptic example
Phineas Gage
He was working on a railroad when a tamping iron shot through his cheek, damaging his frontal lobe
= unique case can’t be replicated