IPA: /nɒnˈkɔːzəl/
KK: /nɑnˈkɔzəl/
Not related to or involving a cause and effect relationship.
The study focused on noncausal factors that influence behavior.
Noncausal → It is formed from "non-" (meaning not) and "causal" (from Latin "causalis", meaning relating to a cause). The word "noncausal" means not relating to a cause or not having a causal relationship.
Think of 'not' ('non-') and 'relating to a cause' ('causal') to remember that 'noncausal' means something that does not relate to a cause.