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Table 5 Single-factor CFA loadings

From: Psychometric evaluation of an electronic Asthma Symptom Diary for young children

ePASD item

Daytime score (SE)

Daytime Symptoms score (SE)

Nighttime score (SE)

Nighttime Symptoms score (SE)a

Overall Symptoms score (SE)

Day 1

n = 82

n = 82

n = 82

n = 82

n = 89

D1 Cough

0.66 (0.07)

0.67 (0.08)

0.74 (0.06)

D2 Wheeze

0.73 (0.09)

0.78 (0.11)

0.72 (0.10)

D3 Chest

0.67 (0.07)

0.56 (0.09)

0.55 (0.08)

D4 Breathing

0.75 (0.07)

0.80 (0.09)

0.77 (0.07)

D5 Activities

0.73 (0.08)

N1 Cough

0.76 (0.11)

0.75 (0.14)

0.71 (0.09)

N2 Wheeze

0.62 (0.10)

0.68 (0.12)

0.77 (0.09)

N3 Breathing

0.90 (0.09)

0.86 (0.14)

0.79 (0.07)

N4 Wakening

0.91 (0.07)

CFI

0.97

1.00

1.00

a

1.00

NFI

0.95

1.00

1.00

a

1.00

RMSEA

0.12

0.0

0.0

a

0.0

Chi-square statistic (df), P value

10.781 (5), 0.0559

1.626 (2), 0.4435

0.745 (2), 0.6889

a (0), —

12.036 (14), 0.6034

Day 8

n = 71

n = 71

n = 66

n = 66

n = 89

D1 Cough

0.68 (0.07)

0.65 (0.07)

0.72 (0.06)

D2 Wheeze

0.91 (0.04)

0.97 (0.04)

0.92 (0.04)

D3 Chest

0.71 (0.08)

0.75 (0.08)

0.70 (0.08)

D4 Breathing

0.93 (0.05)

0.88 (0.05)

0.88 (0.05)

D5 Activities

0.75 (0.07)

N1 Cough

0.81 (0.09)

0.76 (0.12)

0.75 (0.07)

N2 Wheeze

0.76 (0.10)

0.85 (0.11)

0.76 (0.08)

N3 Breathing

0.77 (0.09)

0.76 (0.11)

0.72 (0.09)

N4 Wakening

0.88 (0.10)

CFI

0.99

1.00

1.00

a

0.95

NFI

0.98

1.00

0.99

a

0.93

RMSEA

0.12

0.0

0.08

a

0.14

Chi-square statistic (df), P value

10.138 (5), 0.0714

0.407 (2), 0.8158

2.775 (2), 0.2497

a (0), —

34.785 (14), 0.0016

  1. CFA = confirmatory factor analysis; CFI = comparative fit index; df = degrees of freedom; ePASD = electronic Pediatric Asthma Symptom Diary; NFI = non-normed fit index; RMSEA = root mean square error of approximation; SE = standard error
  2. a The goodness of fit of the Nighttime Symptoms score cannot be determined because df = 0