Implementation intentions do not enhance all types of goals: The moderating role of goal difficulty

Three studies tested whether Gollwitzer and Brandst?tter’s (1997) failure to find an implementation effect for easy goals was due to a ceiling effect, to the moderating effect of previously formed habits, or to a moderating effect of earlier implementation intentions. The studies strongly indicated that easy goals did benefit from forming implementation intentions (i.e., specifying where or when one would perform the action). This suggests that Gollwitzer and Brandst?tter’s failure to find significant implementation effects for easy goals was due to a ceiling effect and not to other moderating effects. However, in the three experiments, we found no positive effect of implementation intentions for the enactment of goal-related behavior corresponding to a certain type of difficult goal. More specifically, when the focus was on the outcome of goal-directed action rather than on the goal-directed actions themselves, implementation intentions specifying when or in what conditions the relevant actions were to be performed did not enhance enactment. When the focus was on the goal-directed actions, we replicated the positive effect of forming implementation intentions. We argue that specifying when or where a goal-directed action should be enacted does not enhance enactment when the actor is not aware of the actions that are required to reach the goal. Possibly, implementation intentions specifying what one should do (rather than where or when) might be more helpful to enhance enactment rates of this type of goal.     

Implementation intentions do not enhance all types of goals: The moderating role of goal difficulty

Three studies tested whether Gollwitzer and Brandstätter’s (1997) failure to find an implementation effect for easy goals was due to a ceiling effect, to the moderating effect of previously formed habits, or to a moderating effect of earlier implementation intentions. The studies strongly indicated that easy goals did benefit from forming implementation intentions (i.e., specifying where or when one would perform the action). This suggests that Gollwitzer and Brandstätter’s failure to find significant implementation effects for easy goals was due to a ceiling effect and not to other moderating effects. However, in the three experiments, we found no positive effect of implementation intentions for the enactment of goal-related behavior corresponding to a certain type of difficult goal. More specifically, when the focus was on the outcome of goal-directed action rather than on the goal-directed actions themselves, implementation intentions specifying when or in what conditions the relevant actions were to be performed did not enhance enactment. When the focus was on the goal-directed actions, we replicated the positive effect of forming implementation intentions. We argue that specifying when or where a goal-directed action should be enacted does not enhance enactment when the actor is not aware of the actions that are required to reach the goal. Possibly, implementation intentions specifying what one should do (rather than where or when) might be more helpful to enhance enactment rates of this type of goal.     

"Instant success": turning temptations into cues for goal-directed behavior

Contrary to lay intuition, counteractive control theory posits that tempting food cues can help individuals to act in accordance with their long-term dieting goal. However, studies have shown that temptations trigger goal-directed behavior only in successful but not in unsuccessful self-regulators. The aim of the present study was to test whether it is possible to create facilitated temptation-goal associations in unsuccessful dieters using implementation intentions (e.g., "If I see or smell chocolate then I will follow my goal to diet") and whether this indeed stimulates more successful self-regulation. It was found that implementation intentions linking a temptation to a dieting goal lead to self-perceived improved resistance to (Study 1) as well as reduced consumption (Study 2) of tempting snacks compared to a control condition. Moreover, Study 2 revealed that the reduced snack consumption was indeed related to facilitated temptation-goal associations in participants who had formed implementation intentions.     

Implementation intentions: a look back at fifteen years of progress

Implementation intentions are if-then plans that spell out when, where, and how a set goal has to be put into action: If situation x is encountered, then I will perform behavior y!, thereby linking a critical situation with a goal-directed behavior. Over the last fifteen years, implementation intentions, as compared to simple goal intentions (I intend to reach z!), have demonstrated their effectiveness as self-regulation strategies in promoting desired behaviors or when unpleasant actions have to be carried out. By forming implementation intentions, the control of unwanted influences (e.g., temptations, bad habits, adverse self-states) on an ongoing goal pursuit can also be facilitated. Furthermore, implementation intentions have been shown to ease goal-directed actions in critical populations such as patients with a frontal brain lesion, schizophrenic patients, and opiate addicts in withdrawal, for whom the initiation problems of the goaldirected action are more accentuated.     

行为执行意向的理论观点及其相关研究

执行意向是指个体以行动目标为导向,通过连接情景线索和目标导向反应,建立行为意向和实际行为之间联系的中介变量。通过梳理执行意向的概念、心理联系及应用研究,发现执行意向主要与行为意向、自我协调、合作性、计划提醒、自觉性、人格等变量产生心理联系;形成执行意向的人具有克服困难,达到既定目标的积极心理状态。然而,执行意向并不总是发挥其积极效应,其与具体情景、个体差异性等有关。最后,文章从四个方面对今后研究的热点与方向进行了展望。     

Complex Prospective Memory in Children with ADHD

The ability to remember intentions (prospective memory) is fundamental to the organization of goal-directed actions in everyday life. Successful prospective remembering involves forming, retaining, initiating, and executing an intention. Although previous research has demonstrated prospective memory impairments in children with attention deficit/hyperactivity disorder (ADHD), this has largely focused on the intention initiation and execution stages. In this study, we investigate the performance of 20 children with ADHD and 20 matched controls at each of the four stages of prospective memory, using a computer multitask paradigm. Results suggest that children with ADHD may demonstrate difficulties forming delayed intentions, as indicated by impulsive planning, and that this may have further implications for the retention and implementation of these delayed intentions. While children with ADHD showed comparable multitask switching, this appeared to be at the expense of intention execution as they made more performance errors than controls. Implications for day-to-day functioning are discussed.     

Complex prospective memory in children with ADHD.

The ability to remember intentions (prospective memory) is fundamental to the organization of goal-directed actions in everyday life. Successful prospective remembering involves forming, retaining, initiating, and executing an intention. Although previous research has demonstrated prospective memory impairments in children with attention deficit/hyperactivity disorder (ADHD), this has largely focused on the intention initiation and execution stages. In this study, we investigate the performance of 20 children with ADHD and 20 matched controls at each of the four stages of prospective memory, using a computer multitask paradigm. Results suggest that children with ADHD may demonstrate difficulties forming delayed intentions, as indicated by impulsive planning, and that this may have further implications for the retention and implementation of these delayed intentions. While children with ADHD showed comparable multitask switching, this appeared to be at the expense of intention execution as they made more performance errors than controls. Implications for day-to-day functioning are discussed.     

To plan or not to plan? Goal achievement or interrupting the performance of mundane behaviors

The present experiment investigated cognitive and behavioral effects of planning (i.e. forming implementation intentions) on goal pursuit during the performance of mundane behaviors. Participants received the goal to collect a coupon halfway the hall from the lab to the cafeteria. Later, they were also given the task to go from the lab to the cafeteria. Thus participants had to attain a new goal by interrupting a mundane behavior. Some participants enriched their goal with implementation intentions, others did not. Results showed that participants who formed implementation intentions were more effective in goal pursuit than the control group. Importantly, the data suggest that the effects of planning on goal completion are mediated by a heightened mental accessibility of environmental cues related to the goal completion task. Copyright © 1999 John Wiley & Sons, Ltd.     

Blocked goals, persistent action: Implementation intentions engender tenacious goal striving

Research on goal attainment has demonstrated that people are more likely to reach their goals when they form implementation intentions. Three experiments tested whether implementation intentions lead to tenacious goal striving following blockage of an initial attempt to reach the goal. In all three experiments some participants were instructed to form an implementation intention and other participants were not. Subsequently, the initial goal-directed attempt of all participants was unexpectedly blocked. Experiment 1 found that implementation intentions resulted in more attempts to realize one’s goal. Experiment 2 showed that when participants formed an implementation intention their repeated attempt was acted out as intensely as their first, blocked attempt. Experiment 3 found that implementation intentions still allow people to seize an alternative, more onerous means to realize their intention. These results imply that implementation intention conserve self-regulatory strength. After goal blockage, the remaining strength can be used to continue goal-directed action.     

Translating intentions into nutrition behaviors via planning requires self-efficacy: evidence from Thailand and Germany

A first step towards the improvement of daily dietary behaviors is forming an intention to change one's nutrition. However, an intention by itself is not sufficient for successful action. Rather, to translate intentions into behavior, careful planning is recommended. Thus, planning constitutes a mediator between the intention and the behavior. However, if a person lacks self-efficacy, this mediation might fail. Previous research in Costa Rica and South Korea has identified perceived self-efficacy as a moderator of the intention-planning-behavior relationship. To examine further the moderator role of self-efficacy, two additional studies were designed in Thailand and Germany. Study 1 surveyed 1718 Thai university students in terms of a low-fat diet; Study 2 surveyed 1140 German internet users in terms of their fruit and vegetable consumption at two measurement points in time, 6 months apart. Intentions served as predictor, planning as mediator, self-efficacy as moderator, and behaviors as outcomes. First, intentions were translated into nutrition behaviors by planning. Second, self-efficacy moderated this mediation in both studies: The strength of the mediated effect increased along with levels of self-efficacy, even when accounting for baseline behaviors. For planning to mediate the intention-behavior relation, people must not harbor self-doubts. If they lack self-efficacy, intentions are not well translated into nutrition behavior through planning.     

Staying on track: Planned goal striving is protected from disruptive internal states

Past implementation intention research focused on shielding goal striving from disruptive internal states (e.g., being anxious) by forming if-then plans that link these very states to instrumental coping responses. In the present line of research, we investigated whether planning out goal striving by means of if-then plans specifying opportunities to initiate goal-directed responses also protects goal striving from the negative impact of disruptive internal states. Indeed, in the face of disruptive internal states, participants who had been asked to form implementation intentions that targeted opportunities for initiating goal-directed responses outperformed participants with a mere goal intention to do well on a focal task goal. Actually, implementation intention participants performed as well as control participants who were not burdened by disruptive internal states such as being in a certain mood (Study 1), ego-depleted (Study 2), or self-definitionally incomplete (Study 3). Results are discussed by pointing to the importance of hypo-egoic self-regulation.     

Can implementation intentions help to overcome ego-depletion?

Research on ego-depletion suggests that the ability to self-regulate one’s behavior is limited: Exerting self-control on an initial task reduces performance on a subsequent task that also requires self-control. Two experiments tested whether forming implementation intentions could prevent ego-depletion and/or offset the effects of ego-depletion. Experiment 1 found that participants who formed implementation intentions during an initial ego-depleting task subsequently showed greater persistence on an unsolvable puzzles task compared to participants who did not form implementation intentions. Experiment 2 found that among participants who had been ego-depleted during an initial task, forming implementation intentions improved subsequent performance on a Stroop task to the level exhibited by non-depleted controls. Thus, implementation intentions help to enhance people’s ability to self-regulate their behavior.     

Self-regulatory strategy and executive control: implementation intentions modulate task switching and Simon task performance

Two tasks where failures of cognitive control are especially prevalent are task-switching and spatial Simon task paradigms. Both tasks require considerable strategic control for the participant to avoid the costs associated with switching tasks (task-switching paradigm) and to minimize the influence of spatial location (Simon task). In the current study, we assessed whether the use of a self-regulatory strategy known as "implementation intentions" would have any beneficial effects on performance in each of these task domains. Forming an implementation intention (i.e., an if-then plan) is a self-regulatory strategy in which a mental link is created between a pre-specified future cue and a desired goal-directed response, resulting in facilitated goal attainment (Gollwitzer in European Review of Social Psychology, 4, 141-185, 1993, American Psychologist, 54, 493-503, 1999). In Experiment 1, forming implementation intentions in the context of a task-switching paradigm led to a reduction in switch costs. In Experiment 2, forming implementation intentions reduced the effects of spatial location in a Simon task for the stimulus specified in the implementation intention. Results supported the prediction that the need for high levels of cognitive control can be alleviated to some degree by making if-then plans that specify how one responds to that critical stimuli.     

The implications of counterfactual mind-sets for the functioning of implementation intentions

Two experiments explored how counterfactual mind-sets interact with implementation intentions and affect their flexibility. Participants engaged in a subtractive mind-set, an additive mind-set, or a control condition and were subsequently given either goal intentions or implementation intentions that facilitated cue detection (Experiment 1) or the goal-directed response (Experiment 2). Dependent variables were the number of targets specified in the intentions and the legitimate alternatives to the targets (flexibility measure). In Experiment 1, the implementation intention (versus goal intention) group were better at detecting specified cues, but worse on alternatives, regardless of mind-set. In Experiment 2, an interaction emerged. For both specified and alternative responses, the subtractive mind-set paired with an implementation intention versus goal intention performed better. This pattern was reversed for additive mind-set conditions. Hence, how counterfactual mind-sets affect the flexibility of planning is dependent on the particular mind-set used and the specific operations of plan.     

Habits as knowledge structures: automaticity in goal-directed behavior

This study tested the idea of habits as a form of goal-directed automatic behavior. Expanding on the idea that habits are mentally represented as associations between goals and actions, it was proposed that goals are capable of activating the habitual action. More specific, when habits are established (e.g., frequent cycling to the university), the very activation of the goal to act (e.g., having to attend lectures at the university) automatically evokes the habitual response (e.g., bicycle). Indeed, it was tested and confirmed that, when behavior is habitual, behavioral responses are activated automatically. In addition, the results of 3 experiments indicated that (a) the automaticity in habits is conditional on the presence of an active goal (cf. goal-dependent automaticity; J. A. Bargh, 1989), supporting the idea that habits are mentally represented as goal-action links, and (b) the formation of implementation intentions (i.e., the creation of a strong mental link between a goal and action) may simulate goal-directed automaticity in habits.     

Bridging the intention–behavior gap: Inducing implementation intentions through persuasive appeals

The potential of using implementation intentions—action plans that link a critical situational cue to a specific goal-directed behavior—to bridge the intention–behavior gap in consumer behavior has been limited by the practice of using explicit instructions to induce the construct. In two studies, we therefore tested the effectiveness of an indirect, persuasive strategy that benefits from the positive consequences of implementation intentions by ‘mimicking’ their underlying psychological processes. Experiment 1 showed that a strategy presenting vivid information on critical cues and appropriate behavioral responses affected mental imagery. Experiment 2 demonstrated that this strategy affected actual purchase behavior.     

Mental contrasting instigates goal pursuit by linking obstacles of reality with instrumental behavior

The self-regulatory strategy of mental contrasting a desired future with obstacles of reality instigates goal-directed behavior when expectations of success are high and curbs goal-directed behavior when expectations are low (Oettingen, 2000). Two studies show that mental contrasting paired with high expectations of success creates strong associations between obstacles of reality and behavior instrumental to overcome these obstacles; mental contrasting paired with low expectations of success leads to weak associations. Reverse contrasting and irrelevant content control conditions did not produce expectancy-dependent associations between obstacle and instrumental behavior. Importantly, the strength of these associations mediated mental contrasting effects on goal-directed behavior (Study 2).     

Power and goal pursuit

Powerful individuals more easily acquire desired outcomes compared to powerless individuals. The authors argue that these differences can partly be attributed to self-regulation. The effects of power on the ability to act in a goal-consistent manner were analyzed across different phases of goal pursuit. Study 1 examined goal setting, Study 2 focused on the initiation of goal-directed action, Study 3 examined persistence and flexibility, and Study 4 assessed responses to good opportunities for goal pursuit and the role of implementation intentions. Consistently across studies, power facilitated prioritization and goal-consistent behavior. Power had, however, independent effects from implementation intentions. Consequences for performance are discussed.     

Breaking and creating habits on the working floor: A field-experiment on the power of implementation intentions

Previous research has shown that implementation intentions are effective tools to promote new behavior. The present study aimed to provide the first evidence that conscious planning is an effective tool in replacing well-learned habits with new habits. This was tested in a field-experiment on repetitive behavior in the domain of recycling, using 109 employees of a tele-company as participants. Recycling behavior of the participants was observed by the actual amount of paper and the number of plastic cups in their personal wastebaskets. Following a pre-measure, participants were assigned to either implementation intention conditions, conditions in which an eye-catching facility was placed to promote recycling behavior, or control conditions. Recycling behavior was substantially improved in the facility as well as the implementation intention conditions in week 1 and week 2 and still 2 months after the manipulation. These data supported our hypothesis that planning breaks down unwanted habits and creates new ones.     

Planning what not to eat: ironic effects of implementation intentions negating unhealthy habits

The present studies tested the effectiveness of implementation intentions with an "if [situation], then not [habitual response]" structure. Based on ironic process theory and the literature on the processing of negations, it was expected that these "negation implementation intentions" would, ironically, strengthen the habit (situation-response association) one aims to break. In line with the hypotheses, forming negation implementation intentions resulted in cognitive ironic rebound effects as well as behavioral ironic rebound effects compared to an intention only condition or a replacement implementation intention. Additionally, it was found that negation implementation intentions are most likely to result in ironic rebound effects when the habit to be negated is strong. Although implementation intentions are generally highly effective in facilitating behavior change even when this involves breaking unwanted habits, the present research suggests that they are ineffective when they have a negating structure.