Skip to main content

Table 2 Definitions of quality levels

From: Psychometric properties of medication adherence instruments in cardiovascular diseases and type 2 diabetes mellitus: systematic review protocol

Quality level

Definition

High

We are very confident that the true measurement property lies close to that of the estimate of the measurement property

Moderate

We are moderately confident in the measurement property estimate: the true measurement property is likely to be close to the estimate of the measurement property, but there is a possibility that it is substantially different

Low

Our confidence in the measurement property estimate is limited: the true measurement property may be substantially different from the estimate of the measurement property

Very low

We have very little confidence in the measurement property estimate: the true measurement property is likely to be substantially different from the estimate of the measurement property

  1. Source: Extracted from Prinsen et al., 2018, p. 1153