The sample for the Employee Survey was selected from the establishments covered in 2007 Malaysia Productivity of the Investment Climate Private Enterprise Survey (PICS).
Ten full-time workers were sampled from each establishment. Workers were interviewed only if the manager of the business did not mind. If the manager had no objections, enumerators asked for a complete list of full-time employees of the establishment from the personnel manager at about the time the human resources module of PICS 2007 was being completed. The personnel manager was asked to choose any one worker from the list. After that enumerators picked employees at fixed regular intervals until a sample of 10 workers was reached. A worker who could not be interviewed was replaced by another randomly chosen employee.
Malaysia PICS 2007 covered establishments in the manufacturing and business support services sectors. For manufacturing industries, the economic activities were defined according to Divisions under the Malaysia Standard Industrial Classification (MSIC) 2000 (2-digit codes), which is identical to the United Nations Statistical Division's International Standard Industrial Classification of All Economic Activities (ISIC Rev. 3) up to the 4-digit level. In Malaysia PICS 2007, 12 manufacturing industries and 5 business support services sectors were surveyed.
The sampling frame was extracted from the Central Register of Establishments (SIDAP) maintained by the Department of Statistics, Malaysia. The register was updated using information supplied by the Companies Commission of Malaysia (CCM), Employees Provident Fund (EPF), the 2006 Economic Census data, and several regular surveys or censuses conducted by the Department of Statistics, Malaysia (DOSM).
For the manufacturing sector, only establishments with more than 10 employees were covered. For the business support services sector, two employment thresholds were used. Only establishments with more than 10 employees were covered for Information Technology, Telecommunications, and Advertising & Marketing, while only establishments with more than 20 employees were covered for Accounting & Related Services and Business Logistics.
Single-stage stratified systematic sampling was used in drawing samples. The sampling frame was stratified by sector, region, state, and industry. To select the sample, for each sector, establishments within each industry, region and area combination were arranged according to the value of output. Selection was then carried out independently for each sub-stratum based on a linear systematic method.
Malaysia PICS 2007 covered 6 regions: 4 regions in Peninsular Malaysia and 2 regions in East Malaysia. Within each of the 6 regions, states and areas to be covered were selected based on the concentration of establishments.
For details on the Malaysia PICS 2007 sampling coverage, sampling methodology and sampling frame, please review "Sampling Methodology of Malaysia PICS 2007" and "Sample Coverage and Distribution of Malaysia PICS 2007" in "Technical Documents" folder.
