The Scores of Twelve Students on the Midterm Exam and the Final

question 9

Essay

The scores of twelve students on the midterm exam and the final exam were as follows. $$\begin{array} { l c c } \hline \text { Student } & \text { Midterm } & \text { Final } \\\hline \text { Navarro } & 93 & 91 \\\text { Reaves } & 89 & 85 \\\text { Hurlburt } & 71 & 73 \\\text { Knuth } & 65 & 77 \\\text { Lengyel } & 62 & 67 \\\text { Mcmeekan } & 74 & 79 \\\text { Bolker } & 77 & 65 \\\text { Ammatto } & 87 & 83 \\\text { Pothakos } & 82 & 89 \\\text { Sul1 ivan } & 81 & 71 \\\text { Wahl } & 91 & 81 \\\text { Zurfluh } & 83 & 94 \\\hline\end{array}$$ Find the rank correlation coefficient and test the claim of no correlation between midterm score and final exam score. Use a significance level of 0.05.

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Definitions:

Walter Mischel

A psychologist best known for his research on personality theory and cognitive-affective behavior, including the famous marshmallow test associated with delayed gratification.

Trait Theory

A theoretical framework in psychology that focuses on the identification and measurement of specific personality traits.

Situational Factors

External influences that affect an individual's behavior, choices, and psychological well-being at any given moment.

Predictability

The ability to accurately forecast future events or behaviors based on current knowledge or analysis.