Research Methods P5

Question 1

What is a correlation?

Answer 1

Analysis to see the extent to which 2 different variables are ‘related’

Question 2

What is a positive correlation?

Answer 2

As variable 1 increases, variable 2 increases

R= +1

Question 3

What is a negative correlation?

Answer 3

As variable 1 increases, variable 2 decreases

R= -1

Question 4

How can you tell if a correlation has a strong relationship?

Answer 4

How closely the points fall together

Question 5

What must a correlation hypothesis include?

Answer 5

Both variables that the correlation is testing

Question 6

What is a directional hypothesis?

Answer 6

If relationship is positive or negative

Question 7

What is a nondirectional hypothesis?

Answer 7

There will be a relationship between…

Question 8

Advantages of correlations

Answer 8

1. Allow to investigate unethical situations-> such investigations won’t be ethical to carry out experimentally
2. Lead to new research-> carried out with relative ease-> decide if new research be generated to investigate relationship
3. Control for participant variables-> both sets of data from same person-> valid

Question 9

Disadvantages of correlations

Answer 9

1. Can’t establish cause + effect-> only tell us whether relationship exists between 2 variables-> can’t tell us if 1 variable causes other
2. Validity issues-> 3rd variable problems-> inaccurate/ invalid