Table 5.

Mean (M) and standard deviation (SD) values of each predictor for each middle term condition (Experiment 1).

Predictor	CM+		CM-		CM0		NM+		NM-		NM0
	M	SD	M	SD	M	SD	M	SD	M	SD	M	SD
Understandability	3.23	0.66	3.57	0.66	3.21	0.67	2.92	0.80	3.00	0.67	2.51	0.67
Convincingness	3.01	0.65	3.38	0.70	2.99	0.77	2.63	0.85	2.64	0.72	2.27	0.84
Emotional appeal	2.33	0.82	2.50	0.80	2.34	0.78	2.49	0.99	2.30	0.79	1.49	0.55
Logical relation	3.11	0.75	3.45	0.71	3.24	0.81	2.89	0.84	2.92	0.78	2.55	0.76
Ambiguity	2.27	0.75	1.89	0.63	2.25	0.80	2.46	0.91	2.52	0.78	2.84	0.89
Belief in the conclusion	3.18	0.67	3.48	0.76	3.11	0.77	2.81	0.92	2.94	0.86	2.56	0.77
Real world experience	2.85	0.82	3.20	0.86	2.93	0.89	2.75	0.99	2.84	0.85	1.96	0.83

Positively valenced (CM+), negatively valenced (CM-), non-emotive (CM0) conventional metaphor. Positively valenced (NM+), negatively valenced (NM-), non-emotive (NM0) novel metaphor.