What do waterfalls have to do with data visualization?
A waterfall graph, otherwise known as a cascade chart, may mean very little to those of us from outside the financial services industry.
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How to prepare for reliability analysis?
The area of reliability analysis is of interest first of all to those who plan to use scales and indices in their studies, namely more complex indicators than a single survey question.
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Thermometers on dashboards
What are the markers of a good dashboard? Why use a thermometer in it?
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Reduction of multidimensionality
Is a simple two-dimensional coordinate system always enough for us?
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Bullet graph
How can we improve a bar chart? Of course, it depends on what we want to achieve.
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When letters count in a table
A common task analysts are often faced with is to establish whether there are any relationships between variables and, if there is a, what is the nature of the relationship.
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Three ways to perceive reliability
When measuring a phenomenon, you need to select the right tool. To measure temperature, you use a thermometer; alcohol content in breath is measured with an alcometer; and weight, with bathroom scales. In survey research, the measuring tool is the questionnaire and its questions. To measure the age…
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