Chi-square can be calculated using a ratio scale for ratio data. 3. Calculation – Ratio data values can be added, subtracted, divided, and multiplied. This question type asks respondents to respond in a measurable way. You’ve likely seen ratio scale questions about income, age, or hours spent. For example, if Chloe has 6 leaves and 12 petals, then we could write that ratio like this: 6:12. Ratio scale refers to the level of measurement in which the attributes composing variables are measured on specific numerical scores or values that have equal distances between attributes or points along the scale and are based on a “true zero” point. Ratio scales are the cream of the crop when it comes to statistical analysis because they have everything you need. Ratio scale. Scales of this type can have an arbitrarily assigned "zero", but it will not correspond to an absence of the measured variable. It allows researchers to compare the differences or intervals. When dealing with a ratio scale, the ratio of any two values can be calculated by using division. Ratio data this scale has measurable intervals. So that two years between the age of 2 and 4 is the same length as between 32 and 34. On the other hand, temperature (with the exception of Kelvin) is not a ratio scale, because zero exists (i.e. Good examples of ratio variables include height, weight, and duration. A unique statistical analysis is possible for ratio data. A ratio scale has all the properties of an interval scale, plus a fixed natural zero.. Most measurement in the physical sciences and engineering is done on ratio scales. For example, the difference between a height of six feet and five feet is the same as the interval between two feet and three feet. Ratio: exactly the same as the interval scale except that the zero on the scale means: does not exist.For example, a weight of zero doesn’t exist; an age of zero doesn’t exist. Example: Likert Scale; Net Promoter Score (NPS) Bipolar Matrix Table; Ratio Scale. In ratio scales there is true zero point. The numbers used in ratio scales can be expressed in ratio relationship. The ratio scale is the 4 th level of measurement scale, which is quantitative. Ratio scale questions have a true zero, and oftentimes will be presented in an ordinal way with ranges. A ratio scale possesses a meaningful (unique and non-arbitrary) zero value. Examples of ratio scales include concentration, length, weight, duration, and more. Ratio Scale Questions. The ratio scale has a unique feature. zero on the Celsius scale is just the freezing point; it doesn’t mean that water ceases to exist). For example, temperature in Fahrenheit scale. Ratio scales provide a wealth of possibilities when it comes to statistical analysis. A ratio scale of measurement is one based on a fixed zero point and where differences between values can be quantified in absolute terms.. A good example is age where equal differences between scores represent equal differences between the thing being measured. A ratio scale is a scale (of measurement) created by units of equal size (like an interval scale) with the added condition that "zero" is not arbitrary.. A ratio scale has an order, a set value between units, and absolute zero. Examples include mass, length, duration, plane angle, energy and electric charge. When dealing with a ratio scale, the difference between any two values can be calculated by using subtraction. Here a true-zero point means complete absence of an attribute. Mean, mode and median can also be calculated for the ratio data. It is a type of variable measurement scale. Among four levels of measurement, including nominal, ordinal, interval, and ratio scales, the ratio scale is the most precise. 5. At the risk of repeating myself, everything above about interval data applies to ratio scales, plus ratio scales have a clear definition of zero. It’s an interval scale with a true zero. For example, weight cannot be negative, -20 Kgs doesn’t exist. We can also easily see from this that there are twice as many petals as there are leaves. For example, 20 feet is one- half of 40 feet and 20 cms is four times of 5 cms.