It is impossible to estimate population factor structures exactly because an infinite number of factor structures can produce the same correlation matrix There are more unknowns than equations in the common factor model Therefore, we cannot uniquely determine factor structures See fundamental theorem of factor analysis
A modern device where a composer leaves certain sections or elements of a composition to chance, or to the discretion of the performer
{i} uncertainty, lack of definition, lack of clarity, ambiguity; indecisiveness, undecidedness, lack of resolution
The unknowable, undecidable, uncertain, or ambiguous in a text Indeterminacy is related to gaps in a text, but are less obviously identifiable and are a quality of a reading or interpretation, not just the text
The indeterminacy of something is its quality of being uncertain or vague. the indeterminacy of language
an act of composition, performance or both in which the outcome is unpredictable Unlike improvisation, any and all sounds within a framework set by the composer are allowed Also referred to as aleatoric