For decades, coping researchers have used between-person designs to address inherently within-person questions derived from theory and clinical practice. The authors describe recent developments in the use of within-person, process-oriented methods that examine individuals intensively over time. Ongoing studies of stress and alcohol consumption, the effects of depression on adaptational processes, and the temporal dynamics of coping with chronic pain demonstrate that by tracking rapidly fluctuating processes such as mood and coping close to their real-time occurrence, daily process designs offer unique insights into conceptually and clinically challenging questions. Such designs also provide new opportunities to examine the purported mechanisms of therapeutic interventions. Despite its demands on participants and investigators, daily process research offers fresh opportunities to link psychological theory, research, and practice.

In this investigation the authors applied the experience sampling method to prospectively test the self-medication hypothesis. In vivo reports gathered in the context of daily life demonstrated that nervousness was the only negative mood state to predict increases in alcohol consumption later in the course of the day. Further examination of this within-person relationship demonstrated that men were more likely to consume alcohol when nervous than were women, but this association was unrelated to family history of alcoholism, problem drinking patterns, or trait anxiety and depression. Consistent with the self-medication hypothesis, cross-sectional analyses also confirmed that alcohol consumption was generally associated with lower levels of nervousness; this effect varied by several demographic and clinical variables. These findings are discussed in terms of the diversity of reasons for alcohol consumption and their potential for explaining problem drinking.

Theoretical models of alcohol consumption assert that young adults endorse multiple drinking motives, including drinking to cope with negative experiences and to enhance positive experiences. Social contacts may be important to both pathways. This study applied daily process methodology to determine the relationship between college student drinking in different contexts and daily social contacts and moods. Each afternoon for 3 weeks, 122 undergraduates (43% men, 57% women) logged onto a secure Web site during specified hours to report daily activities, moods, and contacts. Hierarchical linear modeling analyses provided support for motivational models and the context-specific nature of motivated drinking. Individual differences were revealed for each motivation. These findings highlight the importance of studying within-person processes using daily process designs.

The authors explored a multidimensional view of drinking, whereby social and solitary drinking represent distinct behaviors associated with positive and negative experiences, respectively. Using daily diary methodology and multilevel analytic strategy, the authors examined, over 30 days, the within-person association of negative and positive experiences and alcohol consumption in different contexts and focused on interpersonal experiences. On days with more negative interpersonal experiences, participants engaged in more solitary drinking (i.e., drinking at home and alone), whereas on days with more positive interpersonal experiences they drank more in social contexts. The authors also demonstrated that individuals high on neuroticism drank more in solitary contexts on days with more negative interpersonal experiences, relative to those with lower neuroticism. These findings lend support to models linking daily drinking motivation and context-dependent drinking behavior.

The authors used a daily diary methodology to examine over 60 days how the within-person associations among event stress, alcohol consumption, and desire to drink varied as a function of gender, positive and negative alcohol-outcome expectancies, and avoidant coping in a sample of 88 regular drinkers. Multilevel regression analyses indicated that men who more strongly anticipated positive outcomes or a sense of carelessness from drinking drank relatively more on stressful days compared with low-stress days. Similar results were found predicting desire to drink. Men who anticipated greater impairment from drinking drank relatively less on stressful days. In general, these effects did not hold for women. Little evidence was found for the predicted effects for avoidant coping style, and some results showed that avoidant coping style buffered the exacerbating effects of careless unconcern expectancies.