So I am researching if self-esteem has an effect on hearing aid satisfaction in patients. The patients have filled out two questionnaires, the first measuring self esteem, the second measuring their hearing aid satisfaction. My hypothesis is that a higher self esteem score will correlate to a higher hearing aid satisfaction.
The self esteem questionnaire is a ten part likert scale which asks the patients to ring whether they strongly agree, agree, disagree or strongly disagree with a statement.
The hearing aid satisfaction questionnaire is similar but uses tick boxes for the patients to choose which option best describes their use.
So 20 people have done the questionnaires and so I have 20 scores for self esteem and hearing aid satisfaction for each patient. I want to see if the two scores are correlated.
What statistical test do I use?
(I literally have no experience in stats at all)