CONSTRUCT-VALIDITY OF AN OBJECTIVE (ENTROPY) CATEGORICAL MEASURE OF DIVERSIFICATION STRATEGY

• 成果类型: Article
• 署名作者: HOSKISSON, RE; HITT, MA; JOHNSON, RA; MOESEL, DD
• 署名单位: University of Missouri System; University of Missouri Columbia
• 刊物名称: STRATEGIC MANAGEMENT JOURNAL
• ISSN/ISSBN: 0143-2095
• DOI: 10.1002/smj.4250140305
• 发表日期: 1993
• 页码: 215-235
• 关键词: CONSTRUCT VALIDITY; DIVERSIFICATION STRATEGY; performance

摘要

This study measures the construct validity of an objective (entropy) approach to measurement of diversification strategy. Results indicate strong convergent, discriminant and criterion-related validity for the entropy measure- of diversification. In particular, support for the entropy measure of diversification strategy was demonstrated through associations with the Rumelt subjective measure of diversification (convergent validity); size, debt and R&D intensity (discriminant validity); and accounting and market-based performance (criterion-related validity). Using structural equations modeling, the study reports strong standardized validity coefficients with a diversification factor (0.87 for the entropy and 0. 94 for Rumelt's measures). The objective (SIC count) measure exhibits a low standardized validity coefficient (0.44) with the diversification factor. In a discriminant validity test, 70 percent of the variance in the entropy measure is unique to diversification while only 2.8 percent and 7.6 percent are unique to leverage and size, respectively. However, only 6.3 percent of the variance in the SIC count measure is unique to diversification. The study suggests that it may be more appropriate to use the diversification factor with both the entropy and Rumelt subjective measures for maximum accuracy (however, using either alone would be acceptable). Also, the results suggest that the SIC measure may be appropriate in more limited circumstances.