A music teacher had noticed that some students went to pieces during exams. He wanted to test whether this performance anxiety was different for people playing different instruments. He took groups of guitarists, drummers and pianists (variable = 'Instru') and measured their anxiety (variable = 'Anxiety') during the exam. He also noted the type of exam they were performing (in the UK, musical instrument exams are known as 'grades' and range from 1 to 8) . He wanted to see whether the type of instrument played affected performance anxiety when controlling for the grade of the exam. The second part of the SPSS output is below. Which of the following statements best reflects the effect of 'Instru'? 
Definitions:
Early Adopters
Individuals or organizations who use or purchase new products, technologies, or services soon after they are launched, often before the majority of consumers do.
Diffusion of Innovation
The process by which a new idea, product, or behavior spreads through a population over time.
Diffusion of Innovation
The process by which a new idea, product, or behavior spreads through a population, influencing the adoption rate across individuals and groups.
Social Status
The position or rank of a person or group within the social hierarchy, often influencing power, prestige, and access to resources.
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