> How does one measure happiness? Psychologists can’t use a ruler or a microscope, so they invent an arbitrary scale. The author makes it sound like you just p

> How does one measure happiness? Psychologists can’t use a ruler or a microscope, so they invent an arbitrary scale. The author makes it sound like you just pull a scale out of your ass. There are processes that researchers must follow to create a scale to measure something like happiness. If these rules are not followed correctly, you won't get your research published in reputable journals.