The degree of relationship between tests of cognitive mechanisms

In a variety of fields interested in cognition and cognitive processes \u27tests\u27 have been developed to help scientists infer a variety of cognitive processes. In the current study, the extent to which these tests share commonality in a predicted direction was assessed. Four tests were employed including the Stroop task administered via computer, the Stroop task administered manually, the Simon task, and an Inspection Time task. Eighteen undergraduates served as participants. The study was a one-way within subjects design. The dependent measure for the Simon and Stroop (automated) tasks was reaction time, while the number of correct responses was the dependent measure for Stroop (manual) and Inspection Time. A Pearson\u27s Product Moment Correlation revealed that several tests correlated in a predictable direction. However, several surprisingly low correlations were noted that are not consistent with test based assumptions