A Proposed Scale for Surveying Studies and the Effect of Experience factor

Likert questionnaires are widely used in survey research, it is applied as one of the most fundamental and frequently used tools in construction management sciences research, especially when there isn't historical data. Simultaneously, it is also subjected to a lot of debate sand controversies in regards with the analysis and inclusion of points on the scale. With this context, through reviewing the available literature, which used Likert questionnaires, there are a part concerning of the experts of sample's individuals, these data don't use in analytical study. Also, the construction data are quantities then change into qualities phrases the change into quantities data by ordinal Likert scale. This paper attempts to gradually build a ratio scale from 0-100%, and take into account the effect of the experts of sample's individuals by linear scale.The purpose of this paper is to describe the process for developing reliable and valid measurement instruments that can be used in any construction industry field research setting.