Final answer:
Central Location Telephone Interviewing (CLTI) is the data collection mode that allows for recruitment, training, supervision, and control of interviewers' schedules.
Step-by-step explanation:
The data collection mode that allows for recruitment and training to be conducted at a central location, monitoring of the actual interviews by a supervisor, checking completed interviews "on the spot" and offers control of interviewers' schedules is Central Location Telephone Interviewing (CLTI). In CLTI, interviewers are stationed at a central location where they can be supervised and trained. The interviews are conducted over the telephone, allowing for direct monitoring and supervision. This mode also provides greater control over the interviewers' schedules.