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The importance of choosing one good item for single-item measures of attitude towards the ad and attitude towards the brand and its generalization to all measures
Rossiter, John R., (2009)
Tailor-made single-item measures of doubly concrete constructs
Bergkvist, Lars, (2009)
The predictive validity of multiple-item versus single-item measures of the same constructs
Bergkvist, Lars, (2007)