有冇人可以解釋係咩type嘅Validity Study?

ABC company undertakes a validity study for the purpose of assessing the validity of a psychometric test.Particularly, the company compares test scores of candidates who completed tests and were selected 4 months ago with their current performance. The findings indicate a significant correlation between the test scale of “Introversion” and supervisor’s ratings for the competency of negotiation. The correlation is negative and the r is .36 at the 5% level of significance.