GRAPH
  /SCATTERPLOT(BIVAR)=治疗前 WITH 治疗后 BY 分组
  /MISSING=LISTWISE .
UNIANOVA
  治疗后  BY 分组  WITH 治疗前
  /METHOD = SSTYPE(3)
  /INTERCEPT = INCLUDE
  /CRITERIA = ALPHA(.05)
  /DESIGN = 分组 治疗前 分组*治疗前 .
UNIANOVA
  治疗后  BY 分组  WITH 治疗前
  /METHOD = SSTYPE(3)
  /INTERCEPT = INCLUDE
  /EMMEANS = TABLES(分组) WITH(治疗前=MEAN) COMPARE ADJ(LSD)
  /PRINT = HOMOGENEITY
  /CRITERIA = ALPHA(.05)
  /DESIGN = 治疗前 分组 .
