Caffeine Expectancy Questionnaire--German Version

Schott, Markus; Beiglböck, W.; Neuendorff, Rita

doi:10.1037/t56049-000

Cited by 1 publication

(5 citation statements)

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“…This substantial saving of time is important to popularize online surveys (18). Therefore, the B-CaffEQ-BR fits better to web-based research demands, and the current model is widely used through the internet and social networks (13,15,16,20). The questionnaire is semantically adapted to the Brazilian language and culture and can be applied to the Brazilian adult population of habitual caffeine consumers.…”

Section: Discussionmentioning

confidence: 99%

“…The opposite (improbable effect) was observed for the "Anxiety factor/negative physical effects" factor, which presented a mean value <2.0. In all studies that applied the CaffEQ, the samples were composed of regular caffeine consumers (13)(14)(15)(16). People who presented negative effects after caffeine consumption are probably not regular consumers (11,14).…”

Section: Discussionmentioning

confidence: 99%

“…Some limitations of the present study must be observed. Webbased research has an inherent selection bias, limited to those with access to computers and internet resources, a fact described and observed in other studies with CaffEQ (13)(14)(15)(16). Web-based research is limited to control environmental factors during the research application that may add some risk of bias to the data collected.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, the expectations associated with caffeine consumption and its effects can play an essential role in the development, maintenance, and reinforcement of their consumption showing the importance of knowledge about the subjective perceptions of caffeine consumption (9,12,13). In this regard, validated questionnaires to assess caffeine expectancy have been recently published to understand the expectations of caffeine effects (i.e., mood, appetite, sleep/wakefulness, physical performance, and other factors) and consumption (9,(13)(14)(15).…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, Huntley and Juliano (14) developed the Caffeine Expectancy Questionnaire (CaffEQ), which consists of 47 items divided into seven factors: (i) "addiction, " (ii) "energy and mental activity, " (iii) "appetite suppression, " (iv) "improved mood/sociability, " (v) "improved physical performance, " (vi) "anxiety and negative effects, " and (vii) "sleep disorders." In the process of translation and cultural validation, Schott et al (15) validated the CaffEQ for the adult German-speaking population (Germany, Austria, and Switzerland). More recently, Kearns et al (13) proposed a brief English version of CaffEQ validated in a sample (n = 975) of undergraduate adult students from the United States of America (US).…”

Section: Introductionmentioning

confidence: 99%

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Brief Version of Caffeine Expectancy Questionnaire in Brazil

et al. 2021

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The use of extensive questionnaires has the limitation of filling time bias, related to the ability to focus and accurately respond to many items, justifying the necessity for a brief version. This study aimed to build a brief version of the Caffeine Expectancy Questionnaire in Brazil (B-CaffEQ-BR) composed of 21 items divided into seven factors, with as adequate consistency and reproducibility as the full version. Quantitative procedures using statistical modeling were applied using the CaffEQ-BR (full version) database keeping the Mean Absolute Error (MAE) (based on the full version) <0.5 and Cronbach's α and Intraclass Correlation Coefficient (ICC) ≥0.7. The expert panel (n = 3), in a blind design, evaluated the semantic structuring within the options indicated by previous statistical modeling until the agreement of the expert panel. The participants (n = 62), Brazilian adults who were regular caffeine consumers (175.8 ± 94.4 mg/day), of whom 62.9% were women, 33.1 ± 9.7 years, 24.5 ± 3.8 kg/m2, and 62.9% of whom self-identified as white, were asked to respond twice to the online questionnaire in 48–72 h. The first sample (n = 40) tested interobserver reproducibility with the double application of B-CaffEQ-BR. Another sample (n = 22) answered the CaffEQ-BR (full version) and B-CaffEQ-BR, and the last sample (n = 18) performed the reverse process. The B-CaffEQ-BR presented excellent internal consistency (Cronbach's α ≥ 0.729) and overall reproducibility (ICC ≥ 0.915) for the entire questionnaire and its seven factors. The B-CaffEQ-BR can be a valuable tool in caffeine research with the Brazilian adult population.

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