You are Here: Home >< Maths

# Stats interpretation - Correlations Watch

1. Basically, I've got a set of data (2 variables) and I've run a Spearmans rank correlation analysis on them.

This has come up with a Spearmans rank of -0.44 but a two tail P of 0.06.

Does this mean that there is a non-significant (as P>0.05) weak inverse correlation between the two or am I interpreting it incorrectly?

Thanks.
2. (Original post by aphex.twin)
Basically, I've got a set of data (2 variables) and I've run a Spearmans rank correlation analysis on them.

This has come up with a Spearmans rank of -0.44 but a two tail P of 0.06.

Does this mean that there is a non-significant (as P>0.05) weak inverse correlation between the two or am I interpreting it incorrectly?

Thanks.
Assuming that you are meant to use a 5% significance level, then yes you are right. (I think. It's been ages since I did this!)
3. Yeah, I'm going for a 5% significance level.

If the P value is > 0.05 what is the interpretation of the test?

Does it mean that there is no correlation between the two variables? (even though the SRCC is -0.44)

Thanks
4. (Original post by aphex.twin)
Yeah, I'm going for a 5% significance level.

If the P value is > 0.05 what is the interpretation of the test?

Does it mean that there is no correlation between the two variables? (even though the SRCC is -0.44)

Thanks
It means you reject the hypothesis that there is a correlation (i.e. You conclude that there is no significant correlation. You have NOT proven that there isn't correlation; you have just failed to give enough evidence that there is a correlation!)

Think about it this way: Suppose I gave you a coin and told you to flip it 10 times then decide whether or not it's biased. You flip it and record 6 heads and 4 tails.
Would you conclude that the coin is biased based on this? No, because there's not enough evidence. But does this mean for sure that the coin isn't biased? Again no; that's just the best educated guess that you can make with the given information.

So similarly in this question, can you conclude that there is a significant correlation? No, because there is a lack of evidence.
Does this mean for sure that there isn't any correlation? No, that's just the best guess you can make.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 25, 2010
Today on TSR

### Degrees to get rich!

... and the ones that won't

### Cambridge interviews pour in...

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.