When speakers use verbal cues, what are they trying to accomplish?

An experimenter is examining the relationship between age and self-disclosure. a large sample of participants that are 25 to 35 years old and participants that are 65 to 75 years old are compared, and significant differences are found with younger participants disclosing much more than older people. the researcher reports an effect size of .34. what does this mean

Which type of evidence would support the author's claim?

Explain how nationalism led to independence in south africa.