Where further information is available, a number in square or round brackets is used to direct the reader to an article in the list of references.
The decision whether matter should be between commas, round brackets, or dashes is made by author or editor, and may be a matter of personal, editorial, or house style.
The arrays, as far as I'm aware still use round brackets.
The results of logit and probit estimation for the first analysis are shown in Table 3 (with p values reported in round brackets and z values in square brackets).
Definition of round bracket in US English:
round bracket
noun
British
Either of a pair of parentheses.
Example sentencesExamples
The decision whether matter should be between commas, round brackets, or dashes is made by author or editor, and may be a matter of personal, editorial, or house style.
The arrays, as far as I'm aware still use round brackets.
The results of logit and probit estimation for the first analysis are shown in Table 3 (with p values reported in round brackets and z values in square brackets).
Where further information is available, a number in square or round brackets is used to direct the reader to an article in the list of references.