Research Methods - Paper 1 Flashcards
Aim
What the researcher is going to investigate
Hypothesis
What the researcher thinks will happen
N u l l hypothesis
There is no relationship between variables
Alternative hypothesis
There is a relationship between the variables
What does a hypothesis need to contain
One condition of the independent variable and one condition of the dependant variable
What type of experimental design needs the least number of participants for the same amount of data
Repeated measures
What type of experimental design is the most time-consuming
Matched pairs
What type of experimental design has order effects as a limitation
Repeated measures
What is random allocation
Refers to how experimenter’s divide and place participants into each experimental condition
Order effects
Order effects can occur when using a repeated measures design as a result of 1 participants taking part in both conditions the research I cannot see if it was a change in the independent variable that affected the dependant variable or if it was the order in which the participants did the conditions
Practise effect
Participants do better in the condition to because they practised in condition 1
Fatigue effect
Participants be worth in condition to because they are tired from condition one
What can be done to overcome order effects
Counterbalancing
What can be done to overcome order effects
Counterbalancing
Randomisation
Randomisation is the process of making something random random means having an equal chance of being selected the process is used to reduce the effects of researcher induced bias
Standardisation
Standardisation means insuring the everything within an experiment is kept consistent by keeping everything the same for all participants
Pilot study
A pilot study is a small scale study completed before a main study begins the aim of conducting a pilot study is to identify any Flaws and rectify them before conducting the main large-scale study this will ultimately save the research of time and money
Experiment
An experiment is an investigation where the independent variable is changed to see the effect on the dependant variable
Name the three types of experimental design
Repeated measures, matched pairs independent groups
What is a repeated measures design
Where participants take part in both conditions of the independent variable we compared the results of the dependant variable of the participant from both conditions
What are the positive aspects to a repeated measures design
Half the number of people needed compared to using an independent groups design. The participant are the same so you have no differences between people reduced participant variables.
What are the negative aspects to a repeated measures design
The order of conditions may affect performance. Order effects. By taking part in both conditions the participants may guess the aim of the study and so exhibit demand characteristics
What are demand characteristics
Where participants change their behaviour to give the researcher the result they expect or to purposefully contradict their aim
What is an independent groups design
Participants are randomly allocated to one condition of the independent variable one group undergoes one condition and the other group undergoes the other we then compared the performance of two groups