Measuring Continuous Affect in Daily Life with Intensity Profile Drawings

We examined continuous affect drawings as innovative measure of affective experiences over time. Intensive longitudinal data often relies on discrete assessments, containing "blind spots" between measurements. With continuous affect drawings participants visually depict their affect fluctuations between assessments. In an experience sampling study participants (N=115) rated their momentary positive and negative affect six times daily. After the second rating they additionally drew their positive and negative affect changes and reported affective events between assessments, and received one measurement burst between assessments daily. The strength of the approach is that a substantial amount of informational gain (average 7%) over linearly interpolated points between assessments. The additional information was subsequently categorized into positive and negative affect peaks and valleys, each occurring once a day per person on average. The probability of detecting peaks and valleys increased with reported events. The drawings correlated positively with momentary affect scores from the burst. Yet the drawing predicted the bursts less well suggesting that the momentary ratings may yield different information than the drawings. Although the timing of retrospective drawings is less precise than individual momentary assessments, this method provides a comprehensive understanding of affective experiences between assessments, offering a unique perspective on affect dynamics.