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Table 3 Concurrent validity of the items of the original TSI and the modified TSI

From: Expert panel’s modification and concurrent validity of the Teacher Stress Inventory among selected secondary school teachers in Nigeria

  Number of Items Original TSI Mean (SD) Modified TSI Mean (SD) R p Modified TSI Cronbach α t p
Stress factors
 Time management 8 2.87 (0.84) 2.86 (0.83) 0.99 <0.001 0.78 2.88 0.004
 Work-related stressors 6 2.69 (0.97) 2.68 (0.96) 0.99 <0.001 0.79 2.69 <0.001
 Professional distress 5 3.19 (1.04) 3.19 (1.04) 1.0 <0.001 0.77
 Discipline and motivation 6 2.70 (1.03) 2.69 (0.97) 0.98 <0.001 0.80 0.36 0.7
 Professional investment 4 2.59 (1.09) 2.58 (1.04) 1.0 <0.001 0.76 3.25 0.001
Manifestation of stress
 Emotional manifestations 5 2.39 (1.08) 2.44 (1.03) 0.95 <0.001 0.79 −3.67 <0.001
 Fatigue manifestations 5 2.65 (1.02) 2.63 (1.01) 0.98 <0.001 0.78 4.93 <0.001
 Cardiovascular manifestations 3 2.29 (1.18) 2.28 (1.17) 0.99 <0.001 0.79 3.02 0.003
 Gastronomical manifestations 3 1.94 (1.12) 1.94 (1.13) 1.0 <0.001 0.82
 Behavioral manifestations 4 2.03 (1.03) 1.97 (1.04) 0.98 <0.001 0.88 34.65 <0.001
Total 49 2.64 (0.78) 2.61 (0.96) 0.99 <0.001 0.94 4.52 <0.001