Table 2.
Significant results of the final linear mixed-effects models per memory task.
| Mnemonic discrimination | Object-in-room recall | Complex scene recognition | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Predictors | Est. | Std. Beta | CI | p | Est. | Std. Beta | CI | p | Est. | Std. Beta | CI | p | |||
| (Intercept) | 0.587 | 0.038 | 0.348–0.826 | <0.001 | 0.864 | −0.041 | 0.807–0.920 | <0.001 | 0.536 | −0.015 | 0.366–0.707 | <0.001 | |||
| Time | 0.0004 | 0.058 | 0.00005–0.0008 | 0.027 | 0.0003 | 0.047 | 0.0001–0.0004 | 0.002 | −0.0003 | −0.041 | −0.0006–0.00004 | 0.083 | |||
| Age | 0.002 | −0.389 | −0.006–0.011 | 0.592 | −0.005 | −0.353 | −0.006–0.004 | <0.001 | 0.006 | −0.298 | −0.001–0.012 | 0.082 | |||
| Age2 | −0.00007 | −0.061 | −0.0002–0.000009 | 0.083 | −0.00009 | −0.072 | −0.0002–−0.00003 | 0.005 | |||||||
| Screen size | 0.004 | 0.084 | −0.001–0.008 | 0.098 | 0.002 | 0.063 | −0.0001–0.005 | 0.062 | |||||||
| Delay | −0.002 | −0.192 | −0.002–−0.002 | <0.001 | −0.004 | −0.223 | −0.007–−0.002 | <0.001 | |||||||
| Delay2 | 0.00003 | 0.037 | 0.000004–0.00005 | 0.023 | |||||||||||
| Random effects | |||||||||||||||
| σ2 | 0.012 | .012 | 0.015 | ||||||||||||
| τ00 | 0.014 UserID | 0.009 UserID | 0.010 UserID | ||||||||||||
| τ11 | 0.000003 UserID.days_since_baseline | 0.000002 UserID.days_since_baseline | |||||||||||||
| ρ01 | 0.054 UserID | 0.220 UserID | |||||||||||||
| ICC | 0.639 | 0.428 | 0.514 | ||||||||||||
| N | 212 UserID | 395 UserID | 237 UserID | ||||||||||||
| Observations | 1,325 | 2,625 | 1,660 | ||||||||||||
| Marginal/Conditional R2 | 0.134 / 0.687 | 0.167 / 0.523 | 0.107 / 0.565 | ||||||||||||
The procedure leading to these final models is described in the Statistical Analyses, and all calculated models are included in Supplementary Material.