Source 1
A survey study examined autistic adolescents’ perceptions of how autism spectrum disorder (ASD) relates to their motivation to work hard at school. Participants responded to the statement “My ASD motivated me to work hard at school.”
Responses were given on a Likert scale ranging from strongly agree to strongly disagree. Results were recorded as percentages. Figure 1 shows the percentage of participants selecting each response option.
Figure 1: Percentage of autistic adolescents endorsing different levels of agreement with the statement “My ASD motivated me to work hard at school”

Explain one issue that limits the interpretation of the data in source 1.
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