Figure 2.

Percentages of Between- (Shaded) and Within- (Unshaded) Person Variance in Positive Affect (PA) in End of Day (EOD) and Ecological Momentary Assessment (EMA) Reports. For each dataset, percent between-person variance is displayed in grey shaded portions of the bars and percent within-person variance is displayed in the unshaded portions. In momentary datasets, within-person variance can be decomposed into two sources, variation within-persons across days (the lower portion of the unshaded area) and variation within-persons within days (the upper dotted portion of the unshaded area). ESCAPE and SAWM are hybrid designs containing both EOD and momentary reports, thus the EOD data from the hybrid studies is presented with the diary studies and the momentary data from these hybrid studies is presented with the EMA studies.