In Order to Calculate the Regression R² You Need the TSS

question 10

Essay

In order to calculate the regression R² you need the TSS and either the SSR or the ESS. The TSS is fairly straightforward to calculate, being just the variation of Y. However, if you had to calculate the SSR or ESS by hand (or in a spreadsheet), you would need all fitted values from the regression function and their deviations from the sample mean, or the residuals. Can you think of a quicker way to calculate the ESS simply using terms you have already used to calculate the slope coefficient?

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Definitions:

Therapy

A systematic process for helping people overcome their psychological problems. Therapy consists of a client (patient), a trained therapist, and a series of contacts between them.

Stressful Life Events

Significant occurrences or changes in one's life that can trigger or exacerbate stress, leading to various psychological or physical health outcomes.

Dichotomous Thinking

A cognitive distortion that simplifies the complexity of the world into either/or categories, ignoring the nuances and middle ground.

Didactic Perspectives

Educational approaches focused on teaching specific skills, knowledge, or morality, often through direct instruction.