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# Qualitative vs quantitative data

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### Qualitative vs quantitative data

1. 1. Qualitative vs Quantitative Data Qualitative Data Overview: •Deals with descriptions. Quantitative Data Overview: •Deals with numbers. •Data can be observed but not measured. •Data which can be measured. •Colors, textures, smells, tastes, appearance, beauty, etc. •Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc. •Quantitative → Quantity •Qualitative → Quality
2. 2. Example 1: Oil Painting Example 1: Oil Painting Qualitative data: Quantitative data: *red/green color, gold frame *smells old and musty *texture shows brush strokes of oil paint *peaceful scene of the country *masterful brush strokes *picture is 10" by 14” •with frame 14" by 18” * weighs 8.5 pounds •surface area of painting is 140 sq. in. *cost \$300
3. 3. Example 2: Latte Example 2: Latte Qualitative data: Quantitative data: *robust aroma *frothy appearance * strong taste *glass cup *12 ounces of latte *serving temperature 1500 F. *serving cup 7 inches in height *cost \$4.95
4. 4. Example 3: Freshman Class Example 3: Freshman Class Qualitative data: Quantitative data: *friendly demeanors *civic minded *environmentalists *positive school spirit *672 students *394 girls, 278 boys *68% on honor roll *150 students accelerated in mathematics
5. 5. Make one qualitative observation about the picture above. Explain why this is a qualitative observation. Make one quantitative observation about the picture above. Explain why this is a quantitative observation.
6. 6. Make one qualitative observation about the picture above. Explain why this is a qualitative observation. Make one quantitative observation about the picture above. Explain why this is a quantitative observation.
7. 7. More Warrants! • T’ai Chi – CLAIM I think you should join my t’ai chi class. – EVIDENCE T’ai chi clears the mind and brings peace to the soul. – WARRANT ? • Forks – CLAIM Forks were not used in France in the fifteenth century. – EVIDENCE Paintings of banquets from that period show no forks on the tables or people eating with them. – WARRANT ?
8. 8. • T’ai Chi – CLAIM I think you should join my t’ai chi class. – EVIDENCE T’ai chi clears the mind and brings peace to the soul. – WARRANT As an airline pilot, you need a clear mind and a peaceful soul. • Forks – CLAIM Forks were not used in France in the fifteenth century. – EVIDENCE Paintings of banquets from that period show no forks on the tables or people eating with them. – WARRANT Contemporary paintings are very good indications of the customs of an age.