Systematic judgements occur less frequently in source judgements because they are slow and require a lot of conscious effort. Errors occur due to a misassignment of the weight of certain aspects of memories: assigning high importance to visual information would mean that having poor details of this aspect would be cause for an assumption that the event did not happen or was imagined.
Systematic judgments are less common in source judgments because they are time-consuming and require a lot of deliberate thought. Errors occur due to misassigning the weight of certain aspects of memories: assigning high significance to visual information would mean that poor details of this aspect would lead to an assumption that the event did not happen or was imagined.