Calculate S (Standard Deviation) and A

question 38

Short Answer

Calculate S (standard deviation) and A.D. (average deviation) for the following sample.
2, 2, 6, 9, 10, 10, 15, 18, 18, 20.

Comprehend the impact of external factors on test performance and standardization.

Recognize the significance of norms in interpreting psychological test scores.

Understand the ethical implications related to psychological testing outcomes.

Understand the concept of test reliability and its significance in measuring student ability or trait consistency over time.

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Definitions:

T Cells

A type of white blood cell that plays a central role in cell-mediated immunity, recognizing and responding to infected cells.

Self-tolerance

The immune system's ability to recognize and not mount an attack against the body's own cells and tissues.

Rheumatoid Arthritis

A chronic inflammatory disorder affecting joints, including those in the hands and feet, characterized by painful swelling that can result in bone erosion and joint deformity.

Systemic Lupus Erythematosus

An autoimmune disease where the body's immune system mistakenly attacks healthy tissue in many parts of the body, causing widespread inflammation and tissue damage.