A survey was conducted in a care facility for the elderly, involving 216 subjects, to examine variations in their impressions of care workers' uniforms due to different colors. Care workers wore polo shirts of the following 7 colors/tones: white; light red, blue, yellow, and blue-green; dull blue; and dark blue. The results were as follows: (1) The most favorable color/tone was light blue-green, followed by light blue and red. (2) In comparison with the same hue among different tones, light blue was more favorable than dull or dark blue. Light blue was regarded as "clearer, cleaner, easier to move, and more beautiful, sophisticated, familiar, considerate, intellectual, trustworthy, and healing". (3) 5 factors were extracted through factor analysis: "consideration/healing", "responsibility/ trust", "activeness", "personality", and "flamboyance". Among the 7 colors/tones, light blue-green showed the highest favorability, with particularly high scores for "consideration/healing" and "responsibility/trust".%高齢者介護施設において介護職員に異なる色彩のポロシャツを着用してもらい施設利用者216名を対象に印象を調査した.調査に用いた色彩は，WhiteとlightトーンのRed, Blue, Yellow, Blue GreenとdullトーンのBlueとdarkトーンのBlueである.調査の結果，次のことが明らかとなった.(1)介護服として「好ましい」割合が高いのは，lightトーンのBlue Greenで，次にlightトーンのBlue,lightトーンのRedであった.(2)同一色相で明度の異なるlightトーン，dullトーン，darkトーンのBlueのイメージを比較すると，lightトーンのBlueは，dullトーンやdarkトーンのBlueより「明るい，淸潔である，動き易そう，美しい，洗練されている，親しみやすい，思いやりのある，知的な印象をうける，信頼できる，癒される」と評価された.(3)因子分析の結果，「思いやり•癒し，責任感•信頼，活動性，個性，派手さ」の5因子が抽出された.7種の中で，最も好まれたlightトーンのBlue Greenは，「思いやり•癒し」，「責任感•信頼」の二つの因子の因子得点が高かった.
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