Paper 2- Research Methods Part 1 Flashcards
What is an aim ?
A general statement describing what the study intends to investigate
What is a experimental hypothesis?
This is a normal hypothesis
Which is a testable statement used in an experiment to predict what will happen on an investigation
What are the types of hypothesis?
Null
Directional
Non directional
What is a directional hypothesis ?
A more precious hypothesis that specifically states the direction of the results
One tailed
What Is a non-directional hypothesis?
Where the direction or the results is not predicted.
Two tailed A’s results could go in either way
What is a null hypothesis?
It predicts that there will be no difference in results
What is a variable ?
A measurable characteristic that can differ or change from one observation to another
What is an independent variable ?
A variable that is manipulated during and investigation
What is an dependent variable ?
Something that is measured following the manipulation of the IV
Who are the target population ?
The people who psychologists need to identify by who they are interested in investigating.
What are the types of sampling ?
Opportunity
Random
Stratified
Systematic
Volunteer
What is sampling biased and when does it occur?
Occurs where the sample is dominated by a particular sub group in the target population
What is opportunity sampling?
Where the psychologist picks people who are easily available
What are the strengths of opportunity sampling ?
It’s convenient
It’s quick
What are the limitations of opportunity sampling ?
Research bias may occur
Certain groups of similar people may participate
