IAAO Assessment Administration (400) Practice Test

Dividing responsibilities creates internal controls that help prevent errors and fraud. In an assessment office, having separate people handle data collection, data entry, value adjustment, and review/approval means no one person has control over the entire process. This setup provides checks and balances: each step can be reviewed by someone who wasn’t involved in the previous step, increasing accuracy and catching mistakes or inconsistencies. It also creates a clear, auditable trail of who did what and when, which supports accountability and integrity in valuation results.

Other approaches undermine these safeguards. Treating separation as unnecessary ignores a fundamental risk management practice. Letting a single reviewer handle everything sacrifices verification and increases the chance of undetected errors or manipulation. Limiting the separation to just one step (data entry) misses the broader benefit of independent checks at multiple points in the process.