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EFFECT OF NUMBER OF QUESTIONS AND SCALE TYPES ON THAI CONSUMER RATING TESTS |
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| รหัสดีโอไอ | |
| Creator | 1. Wiwat Wangcharoen 2. Piyaporn Chueamchaitrakun |
| Title | EFFECT OF NUMBER OF QUESTIONS AND SCALE TYPES ON THAI CONSUMER RATING TESTS |
| Publisher | Faculty of Engineering and Agro-Industry Meajo University |
| Publication Year | 2559 |
| Journal Title | Maejo Engineering and Agro Industry Journal |
| Journal Vol. | 1 |
| Journal No. | 1 |
| Page no. | 1-9 |
| Keyword | Number of questions, Scale types, Consumer rating test, Acceptance test |
| ISSN | 2408-2295 |
| Abstract | The number of questions and scale types could be factors affecting consumer responses in sensory evaluation. In four basic taste tests of orange juice, consumers were requested to rate the intensity of the taste of each product by asking for only one taste (sweetness or sourness), two tastes (sweetness and sourness), three tastes (sweetness, sourness, and saltiness) and all four tastes (sweetness, sourness, saltiness, and bitterness) in each trial. It was found that sweetness was rated significantly higher (p<0.05) when asking for only one question, while the opposite result was found in sourness but the intensity discrimination of sourness when asking only one question was better than when asking more questions. Three different scales for the acceptance test, including a 9-point hedonic scale, two 10 cm line scales, one anchoring "min-max" scale and one anchoring "dislike-like" scale, were used for evaluating six snacks. The results of the 9-point hedonic scale were significantly higher (p<0.05) than those of 10 cm line scale with "dislike-like" end-anchors, and the product discrimination of the 9-point hedonic scale was better than those of the 10 cm line scales with "dislike-like" and "min-max" end-anchors, respectively. |
