Standard interview, what is this?

[niwea]

My N-400 online status changed to "Current Status: This case has been sent for a standard interview. Your case has been transferred to a local office and an interview will be scheduled...blah blah..."

What is mean by standard interview? Is there a low level or high level or special interview?

Thanks...

 

[sanjoseaug20]

My N-400 online status changed to "Current Status: This case has been sent for a standard interview. Your case has been transferred to a local office and an interview will be scheduled...blah blah..."

What is mean by standard interview? Is there a low level or high level or special interview?

This is standard verbiage. Standard interview could mean a fly-by 10 minute interview or a 1-hour grilling.