Psychology as a science Flashcards
What are the main features of a sceince
Empirical methods Objectivity Replicability Control Theory construction Hypothesis testing Falsification
What are empirical methods
- Information/data gathered through direct observation or experiment. Important because you can make claims about anything but the only way we know things to be true is through direct testing, i.e. empirical evidence.
- Use empirical methods to validate hypotheses (find them to be true) or falsify (find them to be untrue)
What is objectivity
- scientists expectations should not affect the results that they record- should not be influenced by emotions/prejudices or biased viewpoint
- carefully control conditions which research is conducted, i.e. in a lab. Furthermore, an experiment enables cause and effect to be established (how varying the IV affects the DV)
What is replicability and what are the advantages
- whether or not we can repeat the study and the results that have been generated
- Important that research is written up fully and clearly
- Helps us to establish reliability and validity
- If we wish to draw conclusions from research studies, the procedures and finding must be repeatable
Why is control an important feature of a science
- Allows us to establish cause and effect
- Linked to replicability and objectivity
Why is theory construction and important feature of a science
-facts alone are meaningless- explanations or theories must be constructed so that we can make sense of the facts
What did Popper (1935) believe
- no matter how many positive validations of a scientific theory occur through experimental testing, it doesn’t prove it as undeniably true. However, one example of falsification is enough to render a theory untrue.
- falsifiability is the determining liner between what is and what isn’t scientific
Why is hypothesis testing an important feature of a science
- a good theory must generate testable expectations
- these are stated in hypotheses
- If a scientist fails to find support for a hypothesis, then the theory requires modification
What is a paradigm
it is a shared set of assumptions about the subject matter of a discipline and the methods appropriate to its study
When does a paradigm shift occur
occurs when members of one scientific community change from one established way of explaining/studying a behaviour to a new way, due to new/contradictory evidence e.g. shifting focus from cause to free will
-Very occasionally a paradigm is replaced with a new paradigm, often emerging from a minority position
What did Kuhn argue
- argued that science does not evolve gradually towards truth, science has a paradigm which remains constant before going through a paradigm shift when current theories can’t explain some phenomenon, and someone proposes a new theory
- Science tends to go through these shifts therefore psychology is not a science as it has no agreed paradigm
- There are many conflicting approaches and the subject matter of Psychology is so diverse therefore researchers in different fields have little in common