The aim of this article is to present a tool for measuring the implementation of grassroots product-oriented social innovations by non-governmental organisations (NGOs). This tool will enable a quantitative assessment of the activities of NGOs in regard to the implementation of these innovations as well as a comparison of various areas based on the number of organisations which implement these innovations. The validation of the tool was performed during studies conducted in 2017 on a random sample of NGOs located in Łódź (a city in central Poland). The studies resulted in the establishment of a two-factor structure for the Index of Implementation of Grassroots Product-Oriented Social Innovation. The tool is characterised by satisfactory psychometric properties in regard to factor validity, the internal consistency of each subscale and the stability of test scores over time.

本文的目的是提出一种衡量非政府组织（NGO）实施草根产品导向型社会创新的工具。该工具将能够对非政府组织在实施这些创新方面的活动进行定量评估，并根据实施这些创新的组织数量对各个领域进行比较。该工具的验证是在 2017 年对罗兹（波兰中部城市）的非政府组织随机样本进行的研究中进行的。研究结果建立了草根产品导向型社会创新实施指数的双因素结构。该工具的特点是在因素有效性方面具有令人满意的心理测量特性，