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Table 2 Calibration parameters and model evaluation indices

From: Calibration of self-report tools for physical activity research: the Physical Activity Questionnaire (PAQ)

 

Estimate

SE

T

p

Model parameters

    

Intercept

14.56

2.14

6.81

<.001

Gender

−0.98

0.51

−1.93

.06

Age

−0.84

0.13

−6.74

<.001

PAQ

1.01

0.39

2.58

.01

Model evaluation

    

R2

0.4

   

RMSE

2.54

   

VIFa

1.02-1.05

   

Breusch-Pagan

10.7

  

.22

  1. SE = standard error.
  2. RMSE = root mean square error.
  3. aVIF = variance inflation factor (range).
  4. Dependent variable = %MVPA (average per day).
  5. Gender: boys = 1; girls = 2.
  6. Age: in years (e.g. 10).