TABLE 4

Multitrait-Multimethod Matrix

Measure (Method)A1B1C1A2B2C2C3C4C5
Unaided Recall (Vendor 1)A1
Positive Emotion (Vendor 6)B1−0.29
Engagement (Vendor 1)C1−0.070.21
Unaided Recall (Vendor 2)A20.27−0.370.02
Positive Emotion (Vendor 5)B2−0.080.54−0.040.00
Engagement (Vendor 5)C20.07−0.450.05−0.44−0.65
Engagement (Vendor 3)C3−0.670.050.26−0.220.13−0.05
Engagement (Vendor 4)C4−0.52−0.62−0.26−0.02−0.510.40−0.33
Engagement (Vendor 7)C50.260.170.52−0.320.330.29−0.17−0.40
  • Validity correlations (same trait, different method) are shown in bold. Monomethod correlations (same method or vendor, different trait) are shown in italics.