Is an interviewing method in which a mall interviewer intercepts and directs willing respondents to nearby computers where each respondent reads questions off a computer screen and directly keys his or her answers into the computer?

computer-assisted self-interviewing

Explanation:

Based on the description of the interviewing method that is being provided, it can be said that this method is known as computer-assisted self-interviewing. Like mentioned in the question this is when interviewees answer the interview questions through a computer screen. This is similar to telephone interviews but it is instead through a computer.