From Table 4, age and sex (together) explain the least amount of variability for

Question

From Table 4, age and sex (together) explain the least amount of variability for what variable?

PCS

Physical function

MCS

Vitality

Psychological well-being

Table 4

Variables predicting PCS, physical function, MCS, vitality, and psychological well-being of HRQoL (multiple regression of significant predictors, in blocks)

Notes:

*P < 0.05 level;

**P < 0.01 level;

***P < 0.001 level (2-tailed).

Abbreviations: BMI, body mass index; HRQoL, health-related quality of life; MCS, mental composite summary; PA, physical activity; PCS, physical composite summary.

PCS

Physical function

MCS

Vitality

Psychological well-being

Explanation / Answer

From Table 4, age and sex (together) explain the least amount of variability for what variable?

PCS

that is the answer because the standard error SE of age and sex together in PCS is

greater than the others variables , so there is more variability for PCS

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