There can be varying types of higher levels, I suppose.
Apostolicae Curae found two related objections to the validity of Anglican orders, from the point the supposed invalid form on the Edwardine Ordinal was used. The form of the consecration/ordination rite was judged invalid, due to not mentioning the power of the priesthood to offer the sacrificial Mass. But this in itself was not uncommon, in liturgical rites which the RCC does recognize as validly conveying valid orders, other things being equally valid. So the question of valid intent was directly intertwined with that of the liturgical form.
Valid sacramental intent is, as Apostolicae Curae says, an interior condition of the sacramental minister, and not necessarily subject to positive examination or judgment. The minimum required for valid sacramental intent is for the minister to intend facere quod facit ecclesia, to intend to do what the Church intends, in the action. Since intent is interior, valid intent is normally assumed, if all other aspects of the sacramental action (minister, form, matter, subject) are themselves demonstrably valid. However, if there is some external aspect that permits a judgment of the intent, permitting a determinatio ex adiunctis, that may permit a judgment of invalid intent. In the logic of Apostolicae Curae, that was the use of the Ordinal. Given the circumstances in which the Ordinal was written, and by whom, it was assumed that the intent of anyone who used that form sacramentally was (by determinatio ex adiunctis) considered sacramentally invalid. Thus, through the joined questions of form and intent, each leading to a determination of invalidity, the orders were declared invalid.
Anglicans, of course, have a different view of the matter (and the form and the intent).
The customary recommendation: Fr. J.J. Hughes’ ABSOLUTELY NULL AND UTTERLY VOID.