SORT CASES  BY sign.
SPLIT FILE LAYERED BY sign.
DESCRIPTIVES VARIABLES=riskIndif
  /STATISTICS=MEAN STDDEV MIN MAX.

T-TEST
  /TESTVAL=1000
  /MISSING=ANALYSIS
  /VARIABLES=riskIndif
  /CRITERIA=CI(.95).

COMPUTE riskIndifR=riskIndif.
EXECUTE.
IF  (sign="loss") riskIndifR=2000-riskIndif.
EXECUTE.
SPLIT FILE OFF.
T-TEST GROUPS=sign('gain' 'loss')
  /MISSING=ANALYSIS
  /VARIABLES=riskIndifR
  /CRITERIA=CI(.95).

GLM choseRiskNow choseRiskLater BY RiskNowFirst
  /WSFACTOR=uncertaintyTime 2 Polynomial 
  /METHOD=SSTYPE(3)
  /PRINT=ETASQ 
  /CRITERIA=ALPHA(.05)
  /WSDESIGN=uncertaintyTime 
  /DESIGN=RiskNowFirst.

SORT CASES  BY sign.
SPLIT FILE LAYERED BY sign.
DESCRIPTIVES VARIABLES=choseRiskNow choseRiskLater
  /STATISTICS=MEAN STDDEV MIN MAX.

T-TEST
  /TESTVAL=.50
  /MISSING=ANALYSIS
  /VARIABLES=choseRiskNow choseRiskLater
  /CRITERIA=CI(.95).

SPLIT FILE OFF.
GLM choseRiskNow choseRiskLater BY sign
  /WSFACTOR=uncertaintyTime 2 Polynomial
  /METHOD=SSTYPE(3)
  /PRINT=ETASQ
  /CRITERIA=ALPHA(.05)
  /WSDESIGN=uncertaintyTime
  /DESIGN=sign.

  