features of science Flashcards
Paradigms
Kuhn
suggested that what distinguishes scientific disciplines from non-spine fit i disciplines is a shared set of assumptions and methods - a paradigm
suggested that social sciences lack a universally accepted paradigm
seen as a pre-science as distinct from natural sciences
natural sciences are characterised by having a number of principles at their core such as the theory of evolution
psych on the other hand is marked by too much internal disagreement and has too many conflicting approaches to qualify as a science - pre-science
paradigm shifts
kuhn
progress within an established science occurs when there is a scientific revolution
handful of researchers begin to question and accepted paradigm
this critique begins to gather popularity and pace and eventually a paradigm shift occurs when there is too much contradictory evidence to ignore
theory construction
science tests theories
theory is a set of general laws or principle that have the ability to explain particular event or behaviours
theory construction occurs through gathering evidence via direct observation
hypothesis testing
an essential component of a theory is that it can be scientifically tested
theories should suggest a number of possible hypothesis
a hypothesis like this can then be tested (hypothesis testing)
using systematic and objective methods to determine whether it will be supported or refused - in this case the theory will be strengthened or revised and revisited
falsifiability
Popper
argued that the key criterion of a scientific theory is its falsifiability
genuine scientific theories should hold themselves up for hypothesis testing and the possibility of being proven false
he believed that even when a scientific principle has been successful and repeatedly tested it was not necessarily true
instead it just hasn’t been proven false yet
pause o-sciences which couldn’t be falsified
an alternative hypothesis must always be accompanied by a null hypothesis (allows for falsifying the hypothesis)
replicability
popper
if a scientific theory is to be trusted the findings must be shown to be repeatable across a number of different contexts and circumstances
important in determining the validity of the finding
means the findings can be generalised
objectivity
scientific researchers must strive to maintain objectivity as part of their investigations
they must nit allows their personal options or biases to discolour the data they collect or influence the behaviour of the participants they are studying
empirical method
objectivity is the basis of the empirical method
experimental method and observational method are good examples of the empirical method
Locke - a theory cannot claim to be scientific unless it has been empirically tested and verified