Final answer:
To establish standing in a legal case, the party must show they are sufficiently affected by the decision, confirming both the decision's reviewability and the party's direct interest. The statement in the question regarding the establishment of standing is true.
Step-by-step explanation:
To establish standing, the party challenging an administrative agency's decision must show that they have a sufficient connection to and harm from the law or action challenged to support that party's participation in the case.
This involves demonstrating that the issues relating to the reviewability of the decision and the aggrieved party's direct and personal interest in the outcome are satisfied.
The answer to the student's question is true, as both elements are critical in establishing standing to challenge an administrative agency's decision.