What is the logic behind scripted interview questions?

the last thing you want, as a hiring manager, is to send a candidate home before they answer the questions that are important to ask.

Generally, scripted interview questions are used to ensure that each candidate is considered on answers to important questions, and that every candidate is given an opportunity to answer every question. It levels the playing field.

Because the last thing you want, as a hiring manager, is to send a candidate home before they answer the questions that are important to ask. It’s like a check list, used to ensure a complete and fair process.