RESEARCH PAPER
Attitudes of Polish adolescents towards energy drinks. Part 1. Development, validation and reliability testing of a scale to identify attitudes towards energy drinks
 
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1
Faculty of Physiotherapy and Health Sciences, Gdansk College of Health, Poland
2
Faculty of Management and Quality Science, Gdynia Maritime University, Poland
CORRESPONDING AUTHOR
Katarzyna Żyłka   

Faculty of Physiotherapy and Health Sciences, Gdansk College of Health, Pelplinska 7, 80-335 Gdansk, Poland
 
 
KEYWORDS
TOPICS
ABSTRACT
Introduction and objective:
Attitudes towards food are one of the most important but often underestimated factors related to food consumption. In recent years, researchers have pointed to the growing popularity of energy drinks (EDs) among adolescents and emphasized health risks posed by energy drink (ED) consumption. A substantive and research gap has been found in the subject of identifying attitudes towards EDs.

Objective:
The aim of the study was to develop and validate a scale to identify adolescents’ attitudes towards EDs, and to examine this scale in terms of reliability.

Material and methods:
The scale was validated, including content validation, response process validation and statistical validation. Experts in identifying attitudes towards food participated in the content validation procedure. Response process validation was conducted in a pre-test sample of adolescents aged 13–19 years, while statistical validation was performed based on results obtained in a pilot study. Reliability was tested using Cronbach’s alpha.

Results:
At the beginning, the scale consisted of 28 statements. Performing content validation resulted in the elimination of 2 items from the scale. The last step of the procedure, reliability testing, was connected with removing another 5 statements from the scale. A final version of the scale to identify adolescents’ attitudes towards EDs consisted of 21 statements. Cronbach’s alpha of the scale was 0.856, indicating high reliability of this scale.

Conclusions:
The constructed scale is valid, reliable and therefore can be used as a research instrument in the identification of adolescents’ attitudes towards EDs, and also in investigating associations between these attitudes and behaviours related to ED consumption.

ABBREVIATIONS
BMI—body mass index; ED—energy drink; EDs—energy drinks; KMO—Kaiser-Meyer-Olkin; PC—principal component; PCA—principal component analysis; PCs—principal components; PC1—first principal component; PC2—second principal component; PC3—third principal component
 
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