What is the appropriate statistical tool for determining the significant relationship among two variables? Pearson or Spearman?
Research Question: Is there a significant relationship between the level of IT core competencies and the level of employee’s job performance?
The level of IT Core Competencies and and the level of Employee Job Performance can be acquired using Mean based on questionnaire with 5-point likert-scale.
Thank you for your answers.
If your n is < 30 use Spearman rank correlation, it your n is > 30 use Pearson correlation coefficient. If you want a more advanced way of computation, use for example, linear regression analysis.
Pearson correlation can be used to explore simple relationship between two variables .But using correlation with regard regression analysis for testing hypothesis of the model subjected to some assumptions:
Variable must be continuous, normally distributed ,linearity, outliers are either minimum or are removed entirely , homoscedasticity etc.
thanks.
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