Table 1.
Conventional Way of Missing Data Classification: O=observed, X=missing.
Missing Data Pattern | Wave 1 | Wave 2 | Wave 3 |
---|---|---|---|
1 Completers | O | O | O |
2 Miss the last observation. | O | O | X |
3 Miss the last 2 observations. | O | X | X |
4 Intermittent missingness | O | X | O |