6Quantitative Purification of a Reflective Scale

6.1. Introduction

After having presented the main foundations of the construction of a measurement scale, in particular a multi-item reflective scale, we must now specify that the various devices previously specified deserve to be refined by a more technical examination. It is a question of being able to evaluate the quality of the items identified. To do this, various statistical tests must be undertaken. Indeed, using a reflective multi-item scale to measure a phenomenon implicitly implies that it can be understood according to the formulations of the items. But do these different indicators really reflect a single construct? Or is it a multi-faceted phenomenon? Do these facets refer to the theoretical dimensions of the phenomenon studied? Also, do these items ...

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