Zack and Lavina each get an A on their English exams. Zack believes that he received an A because he is extremely intelligent, and Lavina believes she received an A because she was lucky to have an easy exam. According to Rotter's expectancy theory, Zack is an , and Lavina is an .

Internal; External

Explanation:

According to Rotter's expectancy theory,  He explains that  people into are classified into  two categories which are  internals and externals.

Internals  are individuals who believe that the outcome of events that happen to them are as a result of their own effort and contributions.

Externals, on the other hand, attribute outcomes of events that happen to them to  luck which were not controlled by them .

Studies have shown that internals are more likely to do better at school, than externals.  Looking at the statement,  Zack and Lavina each get an A on their English exams. Zack believes that he received an A because he is extremely intelligent, and so he is an Internal while  Lavina believes she received an A because she was lucky to have an easy exam shows  Lavina is an External according to Rotter's expectancy theory.

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