Hi all,
I'm fairly new to R and have been working in psychometrics for the past year or so.
I just had a quick question about using the Pearson product moment correlation.
I've developed a questionnaire that attempts to answer the question: can we evaluate soft skills based on online activity? One of those skills, for example, is communication. That variable is assigned a value of 0 (poor communication) to 5 (excellent communication), so I'm really dealing with ordinal data. What I'm looking to do is to establish concurrent validity by comparing my results with a pre-existing validated tool that measures the same domains.
I'm wondering, would it be appropriate to bring in Communication scores from that pre-existing validated instrument, along with the Communication scores from this new instrument, and correlate those using the Pearson product moment correlation? Is there anything else I'm missing?
Any and all help is greatly appreciated!
Darko
I'm fairly new to R and have been working in psychometrics for the past year or so.
I just had a quick question about using the Pearson product moment correlation.
I've developed a questionnaire that attempts to answer the question: can we evaluate soft skills based on online activity? One of those skills, for example, is communication. That variable is assigned a value of 0 (poor communication) to 5 (excellent communication), so I'm really dealing with ordinal data. What I'm looking to do is to establish concurrent validity by comparing my results with a pre-existing validated tool that measures the same domains.
I'm wondering, would it be appropriate to bring in Communication scores from that pre-existing validated instrument, along with the Communication scores from this new instrument, and correlate those using the Pearson product moment correlation? Is there anything else I'm missing?
Any and all help is greatly appreciated!
Darko