Alto is properly the term for the second top part in four-part mixed-voice vocal writing. Applied to voices it means no more than can muddle their way through the alto part, which is not saying a whole lot, because the alto part is notoriously mind numbing (not that itâs not an essential part of the whole, or that weâre not grateful for the people who deal with it).
Longitudinal data system. Longitudinal data system is a data system capable of tracking student information over multiple years in multiple schools. The term appears in Federal law of the United States to describe such a system. Federal funding is provided to aid the design and implementation of such systems.
Qualitative Longitudinal (QL) research focuses on the study of. change in individual lives and in the social worlds in which lives are. lived. The basic empirical questions being addressed are: what has. changed, and what has not changed. And the theoretical questions. begin with plausible explanations for these developments, before.