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Table 3 Effects of a job crafting intervention program on work engagement, job crafting, and psychological distress in the mixed growth model analyses for the whole sample (N = 50)

From: Effects of a job crafting intervention program on work engagement among Japanese employees: a pretest-posttest study

  Estimates of fixed effects (Crude) Estimates of fixed effects (Adjusted)a
Effect t p 95 % CI Effect t p 95 % CI
lower upper lower upper
Work engagement 0.11 2.23 0.03 0.01 0.21 0.11 2.20 0.03 0.01 0.21
Job crafting 0.13 2.37 0.02 0.02 0.25 0.13 2.36 0.02 0.02 0.25
Task crafting 0.08 1.28 0.20 −0.04 0.20 0.08 1.25 0.21 −0.05 0.20
Relational crafting 0.09 1.28 0.20 −0.05 0.23 0.09 1.28 0.20 −0.05 0.23
Cognitive crafting 0.23 2.75 0.01 0.06 0.40 0.23 2.76 0.01 0.07 0.40
Psychological distress −0.08 −2.07 0.04 −0.15 −0.003 −0.08 −2.06 0.04 −0.15 −0.003
  Cohen’s d
T2-T1b 95 % CI T3-T1c 95 % CI T3-T2d 95 % CI
lower upper lower upper lower upper
Work engagement 0.33 0.03 0.62 0.26 −0.04 0.56 0.10 −0.21 0.42
Job crafting 0.36 0.06 0.65 0.47 0.17 0.77 0.03 −0.28 0.35
Task crafting 0.15 −0.15 0.44 0.32 0.02 0.62 0.00 −0.31 0.31
Relational crafting 0.23 −0.06 0.53 0.20 −0.10 0.50 −0.04 −0.35 0.28
Cognitive crafting 0.34 0.04 0.64 0.56 0.26 0.86 0.12 −0.19 0.44
Psychological distress −0.15 −0.44 0.15 −0.31 −0.62 −0.01 −0.23 −0.54 0.09
  1. CI confidence interval, T1 baseline, T2 post intervention, T3 one-month follow-up
  2. aAdjusted for gender, age, marital status, and educational attainment
  3. bCohen’s d between T1 and T2 were based on the score of the respondents who completed baseline survey and post intervention survey (N = 44)
  4. cCohen’s d between T1 and T3 were based on the score of the respondents who completed baseline survey and one-month follow-up survey (N = 42)
  5. dCohen’s d between T2 and T3 were based on the score of the respondents who completed post intervention survey and one-month follow-up survey (N = 39)