February 2024
Intermediate to advanced
666 pages
17h 40m
English
Ossi Pesämaa
When I offer workshops and meet students in methods classes, I often use the metaphor of taking pictures. I often use the example of taking pictures of cars. This is not because I am a fan of cars but rather because cars are good examples of being portrayed in a rather similar way for most of us. In short, I say a car is just a theoretical construct. All of us can visualize a car by closing our eyes. This is the “closed eyes” definition of face validity. In practice, this means that if I take 1,000 different pictures of different quality, the clarity of a car may vary. Some pictures may look blurred and unclear, whereas you can specify every little ...
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