Influencing food preferences of children by ‘if-then’ type instructions

Three experiments were conducted to examine the effects which ‘if-then’ instructions of the type ‘if you eat X’, then you will get Y, have on the evaluation of the foods addressed in the ‘if’ and the ‘then’ parts of the instructions, respectively. Based on research on intrinsic motivation it was hypothesized that liking for food X that one is induced to eat by means of ‘if-then’ instructions will be impaired, whereas liking for food Y offered as a reward for the consumption of X will be enhanced. Experiment 1 revealed an enhancement of liking effect for the ‘then’food lasting for at least six weeks, but no impairment of liking for the ‘if’ food. Experiment 2 explored the possibility of reducing children's dislike for foods by means of paradoxical ‘if-then’ instructions presenting the disliked food in the ‘then’ position as a reward for the consumption of another food. No significant effects were obtained in this study. Experiment 3 examined the effects of introducing yet unknown foods to children by means of ‘if-then’ instructions. Results revealed that liking for the new food is impaired when it is the ‘if’food, but is enhanced when it is offered in the ‘then’ position. Discussion is centered on the possibility that the effects of ‘if-then’ instructions are more pronounced in single trial compared to multi-trial treatment conditions.     

The Susceptibility of the EPPS to Faking in Simulated and Actual Employment Situations

To investigate the fakability of the Edwards Personal Preference Schedule (EPPS) 60 Ss were given the scale under standard (anonymous) instructions; a month later, a third of them were given the scale under ‘simulated’ instructions, a third under instructions to make a ‘good impression’ and a third under ‘actual employment’ conditions. Since the pattern of scores differed significantly between the standard instructions and each of the latter instructions it was concluded that the EPPS is very easily faked and hence should be used with caution outside the research setting.     

Trauma and healing: from ‘furor sanandi’ to ‘animus sanandi’

In his last period (1928–33), Ferenczi tried to complement the ‘negative’ technical principles first introduced by Freud in the 1910s. He introduced diverse and successive ‘positive instructions’, and specific techniques known as ‘elastic’ of ‘relaxation and neocatharsis’, and also made an unsucessful attempt to introduce ‘mutual analysis’. These techniques are implemented around a series of new technical principles including ‘tact’, ‘empathy’, ‘indulgence’, ‘intense sympathy’. All of these positive technical principles and innovations demonstrate the importance of considering the dimension of ‘healing’ in all analytic experiences and the importance of the analyst's functioning as the ‘healer’. The emphasis on the use of these new technical principles is consistent with the emphasis Ferenczi places upon countertransference and traumatic factors in psychopathogenesis.     

Be Careful What You Ask For: Effects of Response Instructions on the Construct Validity and Reliability of Situational Judgment Tests

The aim of this study was to examine how six different types of situational judgment test (SJT) instructions, used frequently in practice, influence the psychometric characteristics of SJTs. The six SJT versions used the exact same items and differed only in their instructions; these versions were administered in two phases. Phase I was a between–subjects design (n= 486) that had participants complete one version of the SJTs. Phase II was a within–subjects design (n= 231) held several weeks later that had participants complete all six versions of the SJTs. Further, 146 of these individuals completed both phases, allowing for an assessment of test–retest reliability. A variety of objective and subjective criteria were collected, including self and peer ratings. Results indicated that instructions had a large effect on SJT responses, reliability, and validity. In general, instructions asking what one ‘would do’ showed more favorable characteristics than those that asked what one ‘should do’. Correlations between these two types were relatively low despite the fact that the same items were used, and criterion–related validities differed substantially in favor of the ‘would do’ instructions. Overall, this study finds that researchers and practitioners must give careful consideration to the types of SJT instructions used; failing to do so could influence criterion–related validity and cloud inferences of construct validity.     

Friendly or just polite? The effect of self-esteem on attributions

Studied the effect of a person's self-esteem on his inferences about another person's feelings toward him. Fifty-six mule and female college student subjects of high or low chronic self-esteem (median split; modified version of Janis and Field's ‘Feelings of Inadequacy Scale’) received either a negative or a positive evaluation of themselves. They were told that the evaluation had been written by another subject who had acted either under ‘sincere’ instructions, which allowed him to give his own opinion, or under ‘role-playing’ instructions, which assigned him to write either a positive or a negative evaluation. The subject's take was to decide under which instruction his evaluation had been written. It was predicted from a self-concistency logic that low self-esteem subjects would attribute negative evaluations to ‘sincere’ and positive evaluations to ‘role-playing’ instructions, while high self-esteem subjects would make the reverse attributions. A significant self-esteem × evaluation positivity interaction (p <.01) supported this prediction.     

Comprehension of new instructions for car drivers in merging areas

This article describes some key results of a study with the aim of measuring the time and accuracy of comprehension of the new instructions ‘keep lane’ and ‘merge alternately’. These instructions shall allow for a more efficient merging behaviour when approaching a working zone with a lane closure on a motorway, and thus increase the capacity of such bottlenecks. One hundred and ninety seven randomly selected car drivers were surveyed by means of face-to-face interviews. A computer-aided survey design ensured a precise measurement of the comprehension time and the testing of animated signs. The instruction ‘merge alternately’ performed well in every respect, though the tested signs were new to drivers. The instruction ‘keep lane’ refers to a completely new meaning. It lags behind both in time and accuracy of comprehension. In this case, the results suggest using a variable message sign (VMS) with a simple text rather than a picture. Moreover, a considerable learning effect was identified. Comprehension improved significantly with the third repetition of the instruction.     

“in”, “on”, and “under” revisited

The present study presents evidence that young children's comprehension of the locatives ‘in’, ‘on’, and ‘under’ is, at least in part, contextually determined. Children aged 1;6–3;0 were given tasks with verbal instructions which were either contextually congruent or incongruent. The results were interpreted in terms of the non-linguistic as well as linguistic strategies apparently used to interpret speech. The results and interpretation are in contrast to those of earlier research.     

Comparing implementation intention interventions in relation to young adults’ intake of fruit and vegetables

This study tests whether the effectiveness of implementation intention-based interventions to increase fruit and vegetable intake in a young adult population can be enhanced using additional pre-intervention instructions and alternative formats; namely, an ‘if-then’ implementation intention versus a more general, ‘global’ plan that does not explicitly link a situational cue with a goal-directed response. Participants (N?=?557) completed pre-test measures of planning, motivation and behaviour with respect to increasing their fruit and vegetable intake before being randomised to a 3 (intervention format: control vs. ‘if-then’ vs. ‘global’ implementation intentions)?×?2 (pre-intervention instruction vs. no pre-intervention instruction) between-participants design. Results revealed a significant intervention format by time interaction, such that intake significantly increased by 0.50 portions in the if-then format condition compared with 0.31 in the global format and 0.01 in the control condition. These results suggest that ‘if-then’ manipulations are superior in promoting behaviour change in an applied setting. The use of pre-intervention instructions had no additional effect on behaviour, providing evidence for the efficacy of implementation intentions even when experimenter demand is reduced. Evidence is also presented to suggest that reported increases in intake are not related to demand characteristics.     

Is it dangerous? The role of an emotional visual search strategy and threat-relevant training in the detection of guns and knives

Counter-terrorism strategies rely on the assumption that it is possible to increase threat detection by providing explicit verbal instructions to orient people's attention to dangerous objects and hostile behaviours in their environment. Nevertheless, whether verbal cues can be used to enhance threat detection performance under laboratory conditions is currently unclear. In Experiment 1, student participants were required to detect a picture of a dangerous or neutral object embedded within a visual search display on the basis of an emotional strategy ‘is it dangerous?’ or a semantic strategy ‘is it an object?’. The results showed a threat superiority effect that was enhanced by the emotional visual search strategy. In Experiment 2, whilst trainee police officers displayed a greater threat superiority effect than student controls, both groups benefitted from performing the task under the emotional than semantic visual search strategy. Manipulating situational threat levels (high vs. low) in the experimental instructions had no effect on visual search performance. The current findings provide new support for the language-as-context hypothesis. They are also consistent with a dual-processing account of threat detection involving a verbally mediated route in working memory and the deployment of a visual template developed as a function of training.     

When 90% confidence intervals are 50% certain: on the credibility of credible intervals

Estimated confidence intervals for general knowledge items are usually too narrow. We report five experiments showing that people have much less confidence in these intervals than dictated by the assigned level of confidence. For instance, 90% intervals can be associated with an estimated confidence of 50% or less (and still lower hit rates). Moreover, interval width appears to remain stable over a wide range of instructions (high and low numeric and verbal confidence levels). This leads to a high degree of overconfidence for 90% intervals, but less for 50% intervals or for free choice intervals (without an assigned degree of confidence). To increase interval width one may have to ask exclusion rather than inclusion questions, for instance by soliciting ‘improbable’ upper and lower values (Experiment 4), or by asking separate ‘more than’ and ‘less than’ questions (Experiment 5). We conclude that interval width and degree of confidence have different determinants, and cannot be regarded as equivalent ways of expressing uncertainty. Copyright © 2005 John Wiley & Sons, Ltd.     

The Relationship of Reliability and Validity of Personality Tests to Frame‐of‐Reference Instructions and Within‐Person Inconsistency

The efficacy of both frame‐of‐reference (FOR) instructions and a measure of within‐person inconsistency in predicting grade point average was investigated. The IPIP Big Five personality questionnaire was given to 329 students with generic instructions and ‘at school’ FOR instructions. The Wonderlic Personnel Test was also administered. A measure of within‐person inconsistency was created based on the standard deviations of responses to items within the same Big Five dimension. The validity of conscientiousness was greater when FOR instructions were given. The measure of within‐person inconsistency provided incremental validity over that of conscientiousness and cognitive ability. Additionally, within‐person inconsistency moderated the relationship between conscientiousness and performance for the participants without the FOR instructions. Practical implications are discussed.     

The influence of social instructions on the effectiveness of a cognitive interview used with very young child witnesses

IntroductionThe modified cognitive interview (MCI) is an investigative interview method used to help child eyewitnesses to enhance the quality of their testimonies (Memon et al., 2010). Composed of cognitive (mnemonics) and social instructions, it indeed supports young witnesses to retrieve and to accurately report all their memories. If the benefits of the mnemonics on the MCI efficiency have been now established (e.g., Holliday & Albon, 2004; Verkampt & Ginet, 2010), the contribution of its social components has however not been deeply explored to date. This is notably the case of two main social instructions presented at the right beginning of an interview: the “Child can say ‘I don’t know”’ and the “Interviewer knows nothing about the facts” instructions.ObjectiveThis study aimed at evaluating the influence of these two social instructions on the effectiveness of MCI mnemonics, designed to be used by police officers to gather very young children's testimonies.MethodTo this end, 59 children aged 4 to 5.9 participated in a painting session and were interviewed two days later with a full modified cognitive interview (MCI), a MCI minus the “Child can say I don’t know” instruction, a MCI minus the “Interviewer knows nothing about the event” instruction, or a structured (control) interview that was solely composed of social instructions.ResultsThe results indicated an increase of 42% more correct information recollected with a full MCI relative to a structured interview during the free recall phase. However, the withdrawal of the “Interviewer knows nothing about the event” instruction from the MCI led the children to report 21% less information. This drop reached 3% with the MCI minus the “Child can say I don’t know” instruction.ConclusionChildren testimonies are therefore more informative when the mnemonics of the MCI are presented to the children along with social instructions.     

The effect of normative models on individual and group choice

Studied the effect of a normative model (maximization of expected value) upon group and individual choice. 109 MBA students in a Lain square research design chose between two alternatives differing in expected value and in range of outcomes. Group choices were significantly (p < .05) closer to those predicted by the normative model than were individual choices. This difference was not due only to information about the presence and applicability of the normative model but rather it was due to the persuasiveness of the model in a group as a cogent and correct solution to the choice dilemma. Task instructions emphasizing the rewards from risk taking produced significantly more choices (p < .05) of the riskier alternative, particularly by individuals as opposed to groups, than did instructions emphasizing the penalties of risk taking. ‘Risky’ and ‘conservative’ shifts in choice between groups and individuals were explicable through knowledge of the influence of the normative model in individual and group choice.     

The interpretation of universal affirmative propositions

It is proposed that All F are G is often given a ‘structure-neutral’ interpretation, as All, F, G, lacking a subject-predicate distinction. In the first experiment, children aged 6–7–8, and 11–12, and adults, acted out instructions like “Make a building in which all the yellow blocks are square”. The experiment demonstrated the dominance in children and decline with age of structure-neutral interpretations. In a second experiment, with the same age groups, propositions of the form All F are G, varying as to the factual inclusion relations expressed, were presented as the major premises of syllogistic items. The results indicated the presence of structure-neutral interpretations under some circumstances in adults as well as children, and also demonstrated the existence in all subjects of a ‘pragmatic processing’ mode that becomes less obligatory with age. In pragmatic interpretations, meaning is determined by previously known factual relations between the things which the words represent, rather than by grammatical relations between the words themselves.     

Re-examining the effects of verbal instructional type on early stage motor learning

The present study investigated the differential effects of analogy and explicit instructions on early stage motor learning and movement in a modified high jump task. Participants were randomly assigned to one of three experimental conditions: analogy, explicit light (reduced informational load), or traditional explicit (large informational load). During the two-day learning phase, participants learned a novel high jump technique based on the ‘scissors’ style using the instructions for their respective conditions. For the single-day testing phase, participants completed both a retention test and task-relevant pressure test, the latter of which featured a rising high-jump-bar pressure manipulation. Although analogy learners demonstrated slightly more efficient technique and reported fewer technical rules on average, the differences between the conditions were not statistically significant. There were, however, significant differences in joint variability with respect to instructional type, as variability was lowest for the analogy condition during both the learning and testing phases, and as a function of block, as joint variability decreased for all conditions during the learning phase. Findings suggest that reducing the informational volume of explicit instructions may mitigate the deleterious effects on performance previously associated with explicit learning in the literature.     

Mental models or methodological artefacts? Adults' naïve responses to a test of children's conceptions of the earth

Vosniadou and Brewer (1992) claim that children's drawings and answers to questions show that they have naïve, theory‐like ‘mental models’ of the earth; for example, they believe it to be flat, or hollow with people inside. However, recent studies that have used different methods have found little or no evidence of these misconceptions. The contrasting accounts, and possible reasons for the inconsistent findings, were tested by giving adults (N=484) either the original task (designed for 5‐year olds) or a new version in which the same drawing instructions and questions were rephrased and clarified. Many adults' responses to the original version were identical to children's ‘naïve’ drawings and answers. The new version elicited substantially fewer non‐scientific responses. These findings indicate that even adults find the original instructions and questions ambiguous and confusing, and that this is the principal reason for their non‐scientific drawings and answers. Since children must find the task even more confusing than adults, this explanation very probably applies to many of their non‐scientific responses, too, and therefore accounts for the discrepant findings of previous research. ‘Naïve’ responses result largely from misinterpretation of Vosniadou and Brewer's apparently simple task, rather than from mental models of the earth.     

Does learning a skill with the expectation of teaching it impair the skill’s execution under psychological pressure if the skill is learned with analogy instructions?

ObjectiveHaving learners practice a motor skill with the expectation of teaching it (versus an expectation of being tested on it) has been revealed to enhance skill learning. However, this improvement in skill performance is lost when the skill must be performed under psychological pressure due to ‘choking under pressure.’ The present study will investigate whether this choking effect is caused by an accrual of declarative knowledge during skill practice and could be prevented if a technique (analogy instructions) to minimize the accrual of declarative knowledge during practice is employed.DesignWe will use a 2 (Expectation: teach/test) x 2 (Instruction: analogy/explicit) x 2 (Posttest: high-pressure/low-pressure) mixed-factor design, with repeated measures on the last factor.MethodsA minimum of 148 participants will be quasi-randomly assigned (based on sex) to one of four groups. Participants in the teach/analogy and teach/explicit groups will practice golf putting with the expectation of teaching putting to another participant, and analogy instructions or explicit instructions, respectively. Participants in the test/analogy and test/explicit groups will practice golf putting with the expectation of being tested on their putting, and analogy instructions or explicit instructions, respectively. The next day all participants will complete low- and high-pressure putting posttests, with their putting accuracy serving as the dependent variable.     

Cognitive load and perspective‐taking: applying the automatic‐controlled distinction to verbal communication

The boundary conditions of perspective‐taking were explored in two experiments. Participants gave instructions on the assembly of a machine model. In Experiment I, cognitive load was manipulated, and speakers gave two instructions to different addressees with divergent knowledge. Unlike utterances produced under low load, instructions given under high load were not adapted to the addressees. Experiment II demonstrated that this load effect was partially compensated for by high accountability. Findings support a two‐stage model of utterance planning: the controlled processes of monitoring and adjustment operate on the output of a predominantly automatic stage of planning. Cognitive load impairs monitoring and adjustment, and leads to ‘standard’ utterances that are not adapted to the addressee's perspective. Copyright © 2000 John Wiley & Sons, Ltd.     

Misunderstanding standardized language in research interviews

Leaving the interpretation of words up to participants in standardized survey interviews, aptitude tests, and experiment instructions can lead to unintended interpretation; more collaborative interviewing methods can promote uniform understanding. In two laboratory studies (a factorial experiment and a more naturalistic investigation), respondents interpreted ordinary survey concepts like ‘household furniture’ and ‘living in a house’ quite differently than intended in strictly standardized interviews, when the interpretation was left entirely up to them. Comprehension was more accurate when interviewers responded to requests for clarification with non‐standardized paraphrased definitions, and most accurate when interviewers also provided clarification whenever they suspected respondents needed it. Copyright © 2004 John Wiley & Sons, Ltd.