Final answer:
Extroversion tends to improve job performance by fostering positive social interactions and assertiveness, beneficial in teamwork and leadership. However, its effectiveness may vary with job type and context.
Step-by-step explanation:
A trait like extroversion has been shown to improve job performance. The various impacts of different levels of extroversion on job performance have been the subject of many studies. Extroversion is often associated with higher levels of social interaction, enthusiasm, and assertiveness, which can contribute positively to certain work environments and roles, especially those requiring teamwork or leadership. However, it's important to note that while extroversion may improve job performance in some cases, it does not guarantee success, and its effects can vary depending on the job or the situation.
Answering the questions based on the information provided:
- Extroversion and job performance - improve.
- Hawthorne effect - The attention of researchers on subjects causes the effect the experimenter is looking for.
- Team halo effect - Teams appear to work better than they do.
- Influence on enzyme activity - Likely to increase the activity of specific enzymes.