Likert Scale Development: Construction and Evaluation of Home Environment Scale

Abstract

The purpose of present paper is the construction and evaluation of home environment scale. An attempt was made in this study to evaluate validity, reliability and to determine the appropriate standards to interpret the results of home environment scale. The final form of the scale includes ten sub-scales (dimensions) with seventy one (71) items/statements. The scale was validated for its content by more than 20 experts from the related and allied fields. The construct validity was calculated through factor analysis for items, and by correlating the score of each sub-scale with the total score of the sale. t test for two independent samples was used (high group 27% and low group27%) to find the discrimination validity for each sub-scale. The reliability for the whole scale as well as for each sub-scale was calculated through Alpha coefficients. From the reliability coefficients, it can be concluded that the scale is reliable as all the values are above .70. Finally, the appropriate standards for interpretation of scores based on stanine procedures are highlighted. However, interpreting the scores through stanine the investigator has to calculate z values of raw scores after the data have been collected from all the sample participants. The stanine procedure is the standardized technique for the categorization of the scores for meaningful interpretation of Likert scale responses.