Ryan wants to study the level of personal happiness among his students. he devises a self-report questionnaire that measures how highly a student scores his or her life’s achievements. ryan believes that these scores are a good measure of personal happiness. in the context of empirical research, the scores on the questionnaire are representative of the of the study.

Operational definition

Explanation:

According to the given context, the scores on the given questionnaires represent the operational definition as it basically refers to the precise statement that are used for determine the conceptual variable by using the specific duration.

The importance of the operational definition is that it helps in collecting the data by understanding the data properly in terms of empirical research.  

The main objective of the operational definition is to understand the concept properly and interpreting the given data efficiently.

 Therefore, Operational definition is the correct answer.

if it is a supervisor that collects all the handmade products the word is you but if it goes straight to the machine made activity there isn't any word unless there is robot programmed to say you.

probably 3 since archeologists and historians don’t understand there writing.