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Table 2 Mixed-effects models assessing the effects of different combinations of grade 6 teacher’s implementation of FOYC intervention and grade 7 and 8 teacher’s delivery of booster session on student outcomes

From: Multi-year school-based implementation and student outcomes of an evidence-based risk reduction intervention

Variables Estimated models
HIV/AIDS knowledge Preventive reproductive health skills Self-efficacy Intention to use protection
  B SE t β SE t β SE t β SE t
Fixed effect             
Intercept 9.565 0.384 24.91*** 4.237 0.189 22.43*** 1.818 0.173 10.51*** 4.417 0.259 17.04***
Age 0.014 0.024 0.59 −0.011 0.013 −0.84 −0.015 0.013 −1.22 −0.057 0.017 −3.34**
Gender             
Male 0.014 0.079 0.17 0.018 0.042 0.44 0.029 0.42 0.70 0.083 0.058 1.44
Female (ref)             
Baseline student outcome 0.027 0.016 1.70# 0.029 0.016 1.76# 0.017 0.020 0.84 0.036 0.017 2.10*
Nine combinations of grade 6 implementation of FOYC and grade 7 and grade 8 booster delivery             
High implementation of FOYC and good delivery of booster in grade 7/8 0.984 0.325 3.03** 0.380 0.155 2.46* 0.363 0.134 2.70** 0.002 0.228 0.01
High implementation of FOYC and fair delivery of booster in grade 7/8 0.841 0.294 2.86** 0.319 0.139 2.30* 0.362 0.122 2.98** 0.186 0.207 0.90
High implementation of FOYC and poor delivery of booster in grade 7/8 0.714 0.342 2.09* 0.132 0.164 0.80 0.213 0.146 1.46 0.228 0.241 0.95
Moderate implementation of FOYC and good delivery of booster in grade 7/8 0.772 0.317 2.44* 0.416 0.153 2.71** 0.311 0.137 2.27* 0.405 0.225 1.80#
Moderate implementation of FOYC and fair delivery of booster in grade 7/8 0.856 0.284 3.02** 0.278 0.135 2.06* 0.318 0.119 2.67** 0.251 0.201 1.25
Moderate implementation of FOYC and poor delivery of booster in grade 7/8 0.767 0.319 2.40* 0.279 0.155 1.80# 0.138 0.138 1.00 −0.035 0.227 −0.15
Low implementation of FOYC and good delivery of booster in grade 7/8 1.057 0.509 2.08* 0.357 0.256 1.40 0.370 0.253 1.46 0.580 0.364 1.59
Low implementation of FOYC and fair delivery of booster in grade 7/8 0.590 0.282 2.09* 0.190 0.143 1.32 0.248 0.131 1.89# 0.181 0.207 0.88
Low implementation of FOYC and poor delivery of booster in grade 7/8 (ref)             
Random effect             
Schoola 0.026 0.049 0.52 0.015 0.009 1.55# - -   0.009 0.020 0.43
Class (nested within school)a 0.384 0.083 4.65*** 0.015 0.012 1.27 0.005 0.009 0.61 0.142 0.035 4.00***
  1. # P < 0.10
  2. *P < 0.05
  3. **P < 0.01
  4. ***P < 0.001
  5. a z test. Good delivery of booster = covered 8–10 activities; fair delivery of booster = covered 4–7 activities; poor delivery of booster = covered 0–3 activities