correlations

Question 1

what is a correlation co efficient and name the 7

Answer 1

tells us the strengh of the relationship between 2 variables

-1 is perfect negative
-0.7 is moderate negative
-0.3 is weak negative
0 is no correlation
0.3 is weak positive
0.7 is moderate positive
1 is perfect positive

Question 2

strengths of conducting correlations

Answer 2

strenght-quantitative data, compare and analyse and stats test and correlation do efficent, has external reliability

identify relationships between variables without having to manipulate behaviour, can conduct when experiments would be impossible or unethical to manipulate

Question 4

weakness of conducting correlations

Answer 4

cause and effect can’t be established, can only show relationship between variables but no further explanation so need further research to establish cause and effect

other unknown variables may have caused link between co variables so can lack in internal validity