

--- Cronbach alpha per group ---
PEOU (1-3): 0.760
PU (4-6): 0.866
QOE (7-9): 0.922
TR (10-12): 0.900
BI (13-15): 0.870

--- KMO and Bartlett per group ---
PEOU (1-3): KMO=0.659, Bartlett χ²=70.06, p=0.00000
PU (4-6): KMO=0.723, Bartlett χ²=137.13, p=0.00000
QOE (7-9): KMO=0.751, Bartlett χ²=200.69, p=0.00000
TR (10-12): KMO=0.740, Bartlett χ²=170.92, p=0.00000
BI (13-15): KMO=0.721, Bartlett χ²=138.23, p=0.00000

--- KMO and Bartlett (all groups together) ---
KMO (overall) = 0.855
Bartlett χ² = 966.55, p = 0.00000

--- EFA (number of factors) ---
Broj faktora prema EV>1        : 3 
Broj faktora prema PA, 95% CI  : 2 
Odabrani broj faktora          : 2 
Kriterij                       : Paralelna analiza (PA) 
Varimax - overall variance: 53.58%
Oblimin - overall variance: 51.67%
Kriterij                       : Najbolja interpretacija s 5 faktora
Varimax - overall variance: 73.16%
Oblimin - overall variance: 61.29%


---- MULTIPLE LINEAR REGRESSION (groups) ----

Model: SE → PEOU
  Model type: Simple
  Model R²=0.138
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: SE, VIF=1.000, VIF_mean=1.000, β=0.372, SE=0.087, t=3.758, p=0.000 → Valid

Model: SA → PEOU
  Model type: Simple
  Model R²=0.286
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: SA, VIF=1.000, VIF_mean=1.000, β=0.535, SE=0.103, t=5.938, p=0.000 → Valid

Model: EE → PEOU
  Model type: Simple
  Model R²=0.088
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: EE, VIF=1.000, VIF_mean=1.000, β=0.296, SE=0.072, t=2.911, p=0.005 → Valid

Model: SE + SA + EE → PEOU
  Model type: Multiple
  Model R²=0.348
  Multiple validity: Valid
  Hierarchical step: baseline (no ΔR²)
  Variable: SE, VIF=1.181, VIF_mean=1.145, β=0.187, SE=0.083, t=1.979, p=0.051 → Invalid
  Variable: SA, VIF=1.143, VIF_mean=1.145, β=0.442, SE=0.106, t=4.744, p=0.000 → Valid
  Variable: EE, VIF=1.112, VIF_mean=1.145, β=0.144, SE=0.065, t=1.567, p=0.121 → Invalid

Model: PEOU → PU
  Model type: Simple
  Model R²=0.143
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: PEOU, VIF=1.000, VIF_mean=1.000, β=0.378, SE=0.143, t=3.825, p=0.000 → Valid

Model: SE → PU
  Model type: Simple
  Model R²=0.035
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: SE, VIF=1.000, VIF_mean=1.000, β=0.186, SE=0.133, t=1.774, p=0.079 → Invalid

Model: SA → PU
  Model type: Simple
  Model R²=0.111
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: SA, VIF=1.000, VIF_mean=1.000, β=0.334, SE=0.167, t=3.321, p=0.001 → Valid

Model: EE → PU
  Model type: Simple
  Model R²=0.000
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: EE, VIF=1.000, VIF_mean=1.000, β=-0.008, SE=0.110, t=-0.075, p=0.941 → Invalid

Model: PEOU + SE + SA + EE → PU
  Model type: Multiple
  Model R²=0.189
  Multiple validity: Valid
  Hierarchical step: baseline (no ΔR²)
  Variable: PEOU, VIF=1.535, VIF_mean=1.339, β=0.302, SE=0.176, t=2.493, p=0.015 → Valid
  Variable: SE, VIF=1.234, VIF_mean=1.339, β=0.056, SE=0.138, t=0.519, p=0.605 → Invalid
  Variable: SA, VIF=1.442, VIF_mean=1.339, β=0.189, SE=0.195, t=1.612, p=0.111 → Invalid
  Variable: EE, VIF=1.143, VIF_mean=1.339, β=-0.156, SE=0.108, t=-1.493, p=0.139 → Invalid

Model: PEOU → QOE
  Model type: Simple
  Model R²=0.230
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: PEOU, VIF=1.000, VIF_mean=1.000, β=0.480, SE=0.146, t=5.130, p=0.000 → Valid

Model: PU → QOE
  Model type: Simple
  Model R²=0.397
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: PU, VIF=1.000, VIF_mean=1.000, β=0.630, SE=0.089, t=7.617, p=0.000 → Valid

Model: PEOU + PU → QOE
  Model type: Multiple
  Model R²=0.466
  Multiple validity: Valid
  Hierarchical step: baseline (no ΔR²)
  Variable: PEOU, VIF=1.166, VIF_mean=1.166, β=0.282, SE=0.132, t=3.331, p=0.001 → Valid
  Variable: PU, VIF=1.166, VIF_mean=1.166, β=0.524, SE=0.091, t=6.189, p=0.000 → Valid

Model: QOE → TR
  Model type: Simple
  Model R²=0.443
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: QOE, VIF=1.000, VIF_mean=1.000, β=0.665, SE=0.078, t=8.362, p=0.000 → Valid

Model: QOE → BI
  Model type: Simple
  Model R²=0.327
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: QOE, VIF=1.000, VIF_mean=1.000, β=0.572, SE=0.098, t=6.542, p=0.000 → Valid

Model: TR → BI
  Model type: Simple
  Model R²=0.340
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: TR, VIF=1.000, VIF_mean=1.000, β=0.583, SE=0.100, t=6.738, p=0.000 → Valid

Model: QOE + TR → BI
  Model type: Multiple
  Model R²=0.401
  Multiple validity: Valid
  Hierarchical step: baseline (no ΔR²)
  Variable: QOE, VIF=1.795, VIF_mean=1.795, β=0.330, SE=0.125, t=2.968, p=0.004 → Valid
  Variable: TR, VIF=1.795, VIF_mean=1.795, β=0.364, SE=0.128, t=3.273, p=0.002 → Valid

Model: PU → BI
  Model type: Simple
  Model R²=0.363
  Multiple validity: N/A
  Hierarchical step: baseline (no ΔR²)
  Variable: PU, VIF=1.000, VIF_mean=1.000, β=0.603, SE=0.103, t=7.088, p=0.000 → Valid

Model: PU + QOE → BI
  Model type: Hierarchical
  Model R²=0.425
  Multiple validity: N/A
  Hierarchical step: ΔR²=0.061, F_change=9.249, df_change=1, p_F_change=0.003 → Valid
  Variable: PU, VIF=1.659, VIF_mean=1.659, β=0.402, SE=0.126, t=3.838, p=0.000 → Valid
  Variable: QOE, VIF=1.659, VIF_mean=1.659, β=0.319, SE=0.118, t=3.041, p=0.003 → Valid

Model: PU + QOE + TR → BI
  Model type: Hierarchical
  Model R²=0.483
  Multiple validity: N/A
  Hierarchical step: ΔR²=0.058, F_change=9.655, df_change=1, p_F_change=0.003 → Valid
  Variable: PU, VIF=1.677, VIF_mean=1.937, β=0.370, SE=0.121, t=3.686, p=0.000 → Valid
  Variable: QOE, VIF=2.320, VIF_mean=1.937, β=0.123, SE=0.133, t=1.039, p=0.302 → Invalid
  Variable: TR, VIF=1.814, VIF_mean=1.937, β=0.325, SE=0.120, t=3.107, p=0.003 → Valid
