This research is general operational information, not legal, tax, accounting, employment, benefits, privacy, cybersecurity, insurance, or financial advice.
Research question and scope
This protocol examines vendor bank change evidence. It reports what one defined record can show in a fixed window and does not claim an industry rate or a causal effect.
Population and unit of analysis
The unit is one bank-change request at receipt. Using one unit keeps linked events from being counted as independent successes or failures.
Definitions and measures
The measure is the share with independent callback and dated approval. Publish the denominator and time window beside each count.
Evidence and data dictionary
Collect the request, callback, and approval. Keep missing, unavailable, and confirmed negative as separate states.
Sampling and collection
The sample is requests received during one quarter. Record the observation date and exclude items already open before the window.
Analysis and reporting
Report completeness by request channel. Separate staff behavior from system behavior whenever the evidence supports it.
Limitations and sources of error
Limits include requests later withdrawn or duplicated. State them beside the finding and avoid turning a small sample into a universal standard.
Review cadence and next action
The next step is to require one callback for every high-value change. Re-test a later sample after the change.