Self-assessment

Why is it crucial to have a well-defined and clear construct when developing a psychological scale?

1. It makes the scale longer
2. It helps with item generation
3. It ensures meaningful and precise measurements
4. It is a requirement for publication

Which of the following is an example of a psychological construct?

1. A red apple
2. The temperature of a room
3. Extraversion as a personality trait
4. A cat's meow