Face Validity
If the test looks right and fair to students is also significant and it is known as face validity. High face validity involves well-constructed format, doable time allotment, and clear directions of a test. To this end, the developer of the TOEFL iBT test carried out numerous exploratory studies over four years to find the best way to design and administrate the test. Besides, high content validity of TOEFL iBT contributes to its face validity as well.