In the face of existing obstacles in the interdisciplinary research on sustainable consumption behaviors, we argue for the need of an integrative framework from an interdisciplinary perspective. Such a framework is presented in the form of a three-dimensional cube model of sustainable consumption behavior (SCB-cube) extended by a fourth impact dimension. The model has two purposes for application: First, to systematize existing research on different behaviors on a common taxonomy and second, to facilitate the selection of relevant sustainable consumption behaviors in social sustainability research based on impact. We critically appraise existing intent-and impact-based research approaches on the four key dimensions of the SCBcube, focusing on the ecological and socio-economic impacts of consumption behaviors. Recommendations for the selection of relevant behaviors for empirical behavioral research are given, using the SCB-cube as a guiding heuristic. The main audience for this model is social science researchers measuring sustainable consumer behaviors on the individual level. Copyright

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We investigated the effects of the duration and type of to-be-articulated distractors during encoding of a verbal list into short-term memory (STM). Distractors and to-be-remembered items alternated during list presentation, as in the complex-span task that underlies much of working-memory research. According to an interference model of STM, known as serial order in a box (SOB; Farrell & Lewandowsky, 2002), additional repeated articulations of the same word between list items should cause minimal further disruption of encoding into STM even though the retention interval for early list items is increased. SOB also predicts that the articulation of several different distractor items should lead to much enhanced disruption if the distractor interval is increased. Those predictions were qualitatively confirmed in 4 experiments that found that it is the type of distractors, not their total duration, that determines the success of encoding a list into STM. The results pose a challenge to temporal models of complex-span performance, such as the time-based resource sharing model (Barrouillet, Bernardin, & Camos, 2004). The results add to a growing body of evidence that memory for the short term is not exclusively governed by purely temporal processes.

a b s t r a c tThis article presents four experiments that tested predictions of SOB (Serial Order in a Box), an interference-based theory of short-term memory. Central to SOB is the concept of novelty-sensitive encoding, which holds that items are encoded to the extent that they differ from already-encoded information. On the additional assumption that distractors are encoded into memory in the same manner as list items, the theory predicts differential effects of interfering activity based on the similarity structure of distractors. Consistent with predictions, three experiments showed that overt articulation of distractors in between recalls of list items did not affect forgetting when the same distractor was repeated multiple times, whereas forgetting was observed if several different distractors were articulated within the same time span. A fourth experiment showed that the absence of forgetting with repeated articulations of the same item was not due to compensatory attentional refreshing of memory traces. The data support the notion that forgetting from short-term memory arises from interference and are difficult to reconcile with temporal decay.

Promoting sustainable consumption among young consumers has become a key priority on the research agenda in such different fields as education for sustainable development, environmental psychology, and consumer policy. Progress in this field has been hampered by a lack of sophisticated research instruments capable of measuring consumption behaviors that are relevant both in terms of their sustainability impacts and their suitability for teenagers. This study addresses this research gap and presents a scale for young consumers' sustainable consumption behaviors (YCSCB) in the areas of food and clothing. Design/methodology/approach The scale was developed in a two-step, mixed-methods approach. In an initial qualitative interview study, the actual behaviors of theoretically selected young consumers (n=8) were identified with regard to acquiring, using, and disposing of consumer goods in the areas of food and clothing. The YCSCB scale was constructed using the findings of this qualitative study and then validated in a subsequent quantitative study (n=155). Findings The YCSCB scale is a valid and reliable scale to measure young consumers' sustainable consumption behavior in the areas of food (n=14 items) and clothing (n=13 items). Originality/value The findings of this research provide a twofold contribution to advancing research on young consumers' sustainable consumption behaviors. Firstly, it presents a consolidated scale that is explicitly constructed for teenagers and their consumption contexts. Secondly, it proposes a heuristic for developing more sophisticated measurements of SCB among young consumers that would allow comparison between studies, is focused on behaviors (instead of confounding behaviors with intentions, attitudes or values), and is impact-oriented in terms of sustainability relevance.

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Environmental knowledge has been established as a behavior-distal, but necessary antecedent of pro-environmental behavior. The magnitude of its effect is difficult to estimate due to methodological deficits and variability of measures proposed in the literature. This paper addresses these methodological issues with an updated, comprehensive and objective test of environmental knowledge spanning a broad variety of current environment related topics. In a multivariate study ( n = 214), latent data modeling was employed to explore the internal factor structure of environmental knowledge, its relationship with general knowledge and explanatory power on pro-environmental behavior. We tested competing factor models and uncovered a general factor of environmental knowledge. The main novel finding of the study concerns its relationship with general knowledge. Employing an established test of general knowledge to measure crystallized intelligence revealed a near perfect relationship between environmental and general knowledge. This general knowledge (including the environmental domain) accounted for 7% of the variance in environmentally significant behavior. Age, additionally to acquired education, emerged as a common predictor for both general knowledge and environmentally significant behavior. We discuss the consequences of the strong relation between general and environmental knowledge and provide a possible explanation for the positive age-environmental conservation relationship reported in the literature.

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