id	keyword
american_scientific_journal-7326	correlation
american_scientific_journal-7326	coefficient
american_scientific_journal-7326	pearson
american_scientific_journal-7326	variables
american_scientific_journal-7326	journal
american_scientific_journal-7326	type
american_scientific_journal-7326	data
american_scientific_journal-7326	correlation coefficients
american_scientific_journal-7326	spearman