Factors Influencing the Use of Photovoltaic Energy by Brazilian Consumers.
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All the answers of the questinnaire concerning research title Factors Influencing the Use of Photovoltaic Energy by Brazilian Consumers. The research use the Theory of planned behavior as main literary framework and model, adopting the three factors: subjective norms, perceived behavioral control and consumer attitude. Others variables were included to adapt and better describe what influence the consumer to adopt photovoltaic energy in Brazil. The constructs added are trust, awareness, perceived risk, environmental concern and perceived cost. The opinions of 293 of a sample of 353 consumers from southeastern Brazil (the vast majority, 98,97%, from the state of São Paulo) who do not yet use photovoltaic energy, were evaluated. The questions were measured using a seven-point Likert scale. Also demographic questions were added.
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In data collection, a questionnaire survey was used to collect data related to given variables. The acronym applied for each construct together with the corresponding authors are in the links above. The data was analyzed in order to trace patterns of association (Bryman, 2003). The questionnaire consisted of demographic questions and adaptations of 43 items from eight constructs, being those factors drawn from the literature review, following the TPB model: attitude, subjective norms, perceived behavioral control and intention to use; to which five further constructs were added, being: trust, awareness, perceived risk, perceived cost and environmental concern. The 43 construct-based questions were measured using a seven-point Likert scale, where 1 = totally disagree and 7 = totally agree. Data was collected from a sample of consumers in southeastern Brazil who do not yet use photovoltaic energy. The aforementioned questionnaire was sent to these consumers, on line, with the intention of collecting primary data. In addition to the online survey, consumers were approached directly on the university campus and at street markets. Non-probabilistic convenience sampling was adopted; that is, the consumers selected to make up the data sample were chosen according to the researcher's judgment (Mattar, 2014).