Research methods Flashcards
Why do psychologists carry out research
to find answers to questions they ask and collect data for real implication
What is the difference between primary and secondary data
-Primary research = the information the psychologist collects for the purpose of their aims
-Secondary research = pieces of information that already exist and are collected by others
What is the difference between quantitative and qualitative data
qualitative data = harder to analyze but gives rich detailed information that explains complex human behaviour
-quantitative data –> easy to put into a computer and analyse
What are the stages of the research project
1) Developing the aims of the research
2) Pilot studies
3) selecting samples + experimental design
4) collecting the data
5) analysing the data
6) Evaluating the project
What occurs during developing the aims of research
outline intentions and purpose of research, predicting what you will find
What occurs during pilot studies
decide on your research method and do a small scale pilot to check if it will work
What occurs during selecting samples and experimental design
select the group of people you will study and how you will group participants
What occurs during collecting, analysing and evaluating data
4) collecting the data —> go out and collect data using research method chosen
5) analysing the data –> place data into tables/graphs and apply statistical tests to find patterns
6) Evaluating the project –> research conclusions, strengths + limitations, suggest practical application, future research
What are the aims of pilot studies
small scale trial run of the investigation, check the procedures/material, allow researcher to make modifications if necessary
Why should psychologists use a pilot study
-check for errors/identify potential issues
-save money/time in the long run
-ensure research method is appropriate and not ambiguous
- check to see if research is ethical
Define the experimental method
involves manipulating one variable to determine if these changes cause changes in another variable. This method relies on high levels of control to test a hypothesis
What is a research aim
a general statement about what the researcher intends to investigate (purpose of research study
define a variable
things in the investigation that are manipulated, measured and controlled,
what is the independent variable
an aspect of the research situation that is manipulated
what is the dependent variable
the variable in the experimental situation that is measured by the researcher and should be caused by the independent variable.
what is operationalise
to be precise and clear about what is being manipulated and measured (testable and repeatable)
what is a hypothesis
statement of what you believe is true
what researcher predicts will happen
what are the steps to forming a hypothesis
1) possible hypothesis
2) 2 independent variables and another possible hypothesis
3) Operationalising the independent variables
4) operationalize the dependent variable
5) fully operationalised hypothesis
what is the difference between a directional and non directional hypothesis
Directional hypothesis –> Participants who….will…compared to participants who
Non-directional hypothesis –> There will be a difference in…between…and…
when would each hypothesis be used
A directional hypothesis is used if there is an agreeable outcome whereas a non-directional hypothesis is used if the previous research is contradictory/there is limited research.
what are the 4 types of experiments
lab experiment
field experiment
natural experiment
quasi experiment
what are lab experiments
an experiment that takes place in a controlled environment within which the researcher manipulates the IV and records the effect of the DV whilst maintaining strict control of extraneous variables e.g bobo doll
what are field experiments
an experiment that takes place in a natural setting within which the researcher manipulates the IV and records the effect on the DV – some variables cannot be controlled due to unpredictability of a public setting
what are natural experiments
an experiment where the change is not brought by the researcher but would have happened even if the researcher had not been there. Participants cannot be randomly allocated to experimental groups as they are already pre set environments e.g capture people in daily life