UNECE Workshop on Consumer Price Indices
This presentation by Cengiz Erdoan from TurkStat focuses on quality control in consumer price indices, presented at the UNECE Workshop in Istanbul, Turkey. The workshop session delves into strategies and methods for ensuring accuracy and reliability in consumer price data collection and analysis, emphasizing the importance of maintaining quality standards to provide credible information for policymakers, businesses, and consumers.
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Presentation Transcript
UNECE Workshop on Consumer Price Indices Session 9: Quality Control Presentation by Cengiz Erdo an, TurkStat October 10-13 Istanbul, Turkey
Quality Controls Quality controls are carried out with two steps in Turkish CPI. Before the dissemination of CPI data After the dissemination of CPI data
Quality Control Before the Dissemination Price quantity, discount as a percentage and rayon price. is automatically calculated by considering By comparing the preceding price and current price, if change rate exceeds %20 limit, system gives warning. This is the first alert for the price collector.
Quality Control After Dissemination CATI is an interactive front-end computer system that aids interviewers to ask questions over the telephone. The answers are then keyed into the computer system immediately by the inteviewer. The computer program controls branching to or skipping amoung questions and validates the data as it is entered. CATI application has been used in TURKSTAT since 2006.
Quality Control After Dissemination The smart electronic form also performed on-line checks on the responses keyed in and alerted the interviewer of inconsistent or doubtful answers. The outlet or renter is not called twice in a year.
