Final answer:
The statement that HR managers and line supervisors will most likely conduct the validation of employment tests is false; this task is typically performed by specialists in test validation such as Industrial-Organizational psychologists.
Step-by-step explanation:
The validation of tests used as employment screening tools will most likely be conducted by professionals who specialize in test validation rather than specifically by the HR manager and line supervisor. The HR manager and line supervisor may collaborate on the process, but they may not be solely responsible for the validation of such tests. Typically, Industrial-Organizational psychologists or other professionals who understand test construction and validation may be engaged to ensure the assessments are both reliable and valid for the specific jobs they are intended to evaluate.
In practice, the validation process would not rely on the subjective judgment of only the HR manager or line supervisor but would incorporate statistical and psychometric analysis to determine if a test is predictive of job performance. This serves to prevent issues such as statistical discrimination and to ensure a fair and effective hiring process. Therefore, the statement given in the question is False.