Find the Inverse of the Matrix $$\left[ \begin{array} { l l l } 1 & 3 & 2 \\1 & 3 & 3 \\2 & 7 & 8\end{array} \right]$$

question 185

Multiple Choice

Find the inverse of the matrix.
- $$\left[ \begin{array} { l l l } 1 & 3 & 2 \\1 & 3 & 3 \\2 & 7 & 8\end{array} \right]$$

• A) \(\left[ \begin{array} { l l l } 1 & \frac { 1 } { 3 } & \frac { 1 } { 2 } \\ 1 & \frac { 1 } { 3 } & \frac { 1 } { 3 } \\ \frac { 1 } { 2 } & \frac { 1 } { 7 } & \frac { 1 } { 8 } \end{array} \right]\)
• B) \(\left[ \begin{array} { l l l } - 1 & - 3 & - 2 \\ - 1 & - 3 & - 3 \\ - 2 & - 7 & - 8 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } - 3 & 10 & - 3 \\ 2 & - 4 & 1 \\ - 1 & 1 & 0 \end{array} \right]\)
• D) No inverse

Apply knowledge of validity types to evaluate psychological tests and measurements.

Identify and understand the role of construct validity in reflecting underlying ideas in tests.

Interpret the relationship between test-retest reliability and temporal stability of measures.

Understand the importance and calculation of interrater reliability in observing behaviors.

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Definitions:

Control

The power to influence or direct people's behavior or the course of events.

Naturalistic Observation

A research method where subjects are observed in their natural environment without any manipulation by the observer.

Case Study

An in-depth investigation of a single person, group, event, or community, often used in psychology, sociology, and anthropology.

Naturalistic Observation

Research method involving observing subjects in their natural environment without intervention.