Journal of Population Sciences
Ní Bhrolcháin and Dyson (2007) | Time order | Rothman and Greenland (1998) | Strength |
---|---|---|---|
Contiguity | Consistency | ||
Duration | Specificity | ||
Distinctiveness | Temporality | ||
Direction | Biologic gradient | ||
Proportionality | Plausibility | ||
Recurrence | Coherence | ||
No cause, no effect | Experimental evidence | ||
Mechanism | Analogy | ||
No alternative |