Chapter 7 Quality Assurance in the TIMSS 2007 Data Collection

considerable effort was made in developing standardized materials and survey operations procedures (see chapter 6 for more information) in order to ensure the quality of the tiMSS data and make valid comparisons of student achievement across and also within the participating countries. in addition, the tiMSS & PiRLS international Study center developed an ambitious international quality control program to document data collection activities in the participating countries. to implement this program, the iEa Secretariat, in cooperation with national centers, nominated an international Quality control Monitor (QcM) in each of the participating countries. the tiMSS & PiRLS international Study center conducted an extensive 2-day QcM training on completing the tasks of the tiMSS 2007 international quality control program. the QcMs were introduced to the tiMSS 2007 survey operations procedures, and the design of the test booklets and background questionnaires. during the training, each QcM received the necessary materials for completing their tasks. the material