Evaluation apprehension and response withholding in solution of anagrams

Sixty male Ss who were classified as high or low scorers on the Sarason Test Anxiety Scale performed a difficult anagrams task either alone, before a passively observing experimenter or in the presence of an experimenter who both observed and evaluated the S's performance. Ss who were high in test anxiety attempted fewer anagrams and had fewer correct solutions in the Evaluated condition than in the Alone condition, but also had a higher proportion of correct solutions out of total attempts. Low test-anxiety Ss did not show variable performance across conditions for any measure. Follow-up studies showed that when Ss were encouraged to attempt partial solutions neither test anxiety nor experimental treatment influenced any of the measures of performance. State anxiety change scores from baseline to post-treatment assessment showed a generally negative correlation between anxiety and number of anagrams attempted. The results indicate that fear of failure engendered by test anxiety and experimenter evaluation caused Ss to withhold responding.     

Differential effects of task and reinforcement variables on the performance of three groups of behavior problem children

In a test of Quay's model of differential response tendencies in three basic dimensions of discordant behavior, 36 delinquent boys divided into three behavior groups — Conduct Disorder, Personality Disorder, Inadequate-Immature — del were compared on a verbal paired-associate task under four conditions of task structure: neutral and emotional content, simplicity and complexity; and two reward conditions: material and verbal. Predictions were that the Conduct Disorder and Inadequate-Immature group would perform optimally under conditions of simple emotional task structure and material reward as opposed to the Personality Disorder group, who would demonstrate optimal performance under verbal reinforcement and reflect an interaction effect for task complexity and emotionality. Results confirmed the basic hypothesis of differential responsiveness as a function of subject variables. Directions of the differences indicated that task variables also produced critical effects.     

Interaction of reinforcement conditions and developmental level in a two-choice discrimination task with children

A total of 540 first, fourth, and eighth graders, equally divided by sex, were run on a two-choice discrimination task under one of three reinforcement conditions: reward (R) for correct responses, punishment (P) for incorrect responses, or reward and punishment (RP) for correct and incorrect responses. Half the Ss were tested by a male E; half, by a female E. Across all developmental levels, learning was superior in the P group. Complex interactions involving sex of S and E underline the importance of organismic variables in discrimination learning and in specifying parameters of reinforcer effectiveness.     

O2 consumption,heart rate and subjective ratings under conditions of relaxation and active coping

Oxygen consumption, respiratory rate, minute volume, heart rate (HR) and subjective ratings from 12 graduate students were monitored under conditions of relaxation and active coping. The controlled, within-Ss, cross-over design consisted of the two experimental conditions alternating between three control periods. The relaxation condition consisted of an autogenic procedure which the Ss had practiced daily for more than a week. The active-coping condition involved avoidance of an aversive noise during a reaction-time task. In terms of O₂ consumption, there was a slight (3%) but nonsignificant decrease during relaxation. There was a trend for HR to increase during active coping, although this finding was attenuated by the presence of a subset of Ss who responded with a marked and unexpected decrease in HR under this condition. Subjective ratings obtained at 1-min intervals throughout the experiment indicated that the Ss achieved significant levels of subjective relaxation during the procedure. The results of the study failed to support the presence of a hypometabolic state during relaxation as proposed by Benson.     

Developmental changes in apportionment of study time among items in a multitrial free recall task

First grade, third grade, and college Ss attempted to memorize a single set of items over the course of 5 trials, each trial consisting of a 45-sec study period followed by a free recall test. On all trials but the first, S was allowed to have available during his study period only half of the total set of items, but was free to select whichever items he wished to include in this half. Third grade and college Ss were significantly more prone than first grade Ss to select for study items not recalled in the immediately preceding recall test. The results suggest that the strategy of deliberately concentrating one's study activities on the less well mastered segments of materials to be learned, like other elementary memory strategies (e.g., rote rehearsal), cannot automatically be assumed to be part of a young child's repertoire of learning techniques.     

惩罚对学习时间分配中决策与绩效的影响*

学习时间分配中的学习决策及其如何影响后续学习绩效是学习心理研究的重要领域。但对惩罚学习条件下,学习者是如何调整学习策略的,以及这种调整与后续学习绩效之间的关系尚不明确。本研究发现,奖励和惩罚条件下,参与者都会更多地选择高分的项目进行学习。在学习时间分配上,奖励组和惩罚组都倾向于将时间更多地分配到困难和高分的项目。但惩罚条件下参与者对低分项目的选择比例显著低于奖励条件,这表明惩罚影响学习者的学习策略。而且惩罚条件也影响低分且容易项目的学习效率。有趣的是,奖励和惩罚虽然对学习策略产生影响,却对学习绩效影响不显著,这表明在不同的学习条件下,不同的学习策略可以获得相似的学习成绩。     

I'm worth more than you! Effects of reward interdependence on performance,cohesion, emotion and effort during team competition

ObjectivesTo examine the effects of reward structures on the performance of a motor task. To evaluate the effects of reward interdependence on performance, cohesion, emotion, and effort during intergroup (team) competition.DesignAn experimental design was used to compare the effects of reward interdependence (no, low, high) on performance of a strength and endurance task.MethodParticipants (N = 111) performed a 3-min handgrip task as a member of a team of four under three reward interdependence conditions (no; low, with an even split of prize money; high, with an uneven split of prize money) in head-to-head competitions against another team. Task performance was assessed using the cumulative force production total. Task-related cohesion, enjoyment, anxiety and effort were measured using self-report scales.ResultsPerformance was better with rewards than no reward, and better with high than low reward interdependence. Team cohesion was highest with low reward interdependence. Effort was greater with rewards than no reward. Anxiety and enjoyment did not vary among the reward conditions. Mediation analyses indicated that increased cohesion mediated improvements in performance from no reward to low reward interdependence conditions, and increased effort mediated improvements in performance from no reward to both low and high reward interdependence conditions.ConclusionPerformance of a simple physical task in team competition was facilitated by rewards, with optimal performance associated with unequal rewards (i.e., performance-related pay). The benefits of performing with rewards compared to no rewards were explained by increased cohesion and effort. Social interdependence theory can help explain performance of simple motor tasks during team-based competitions. The findings have implications for the pay structures adopted by sports teams.     

Preschoolers' counting: principles before skill

Three- to 5-year-old children participated in one of 4 counting experiments. On the assumption that performance demands can mask the young child's implicit knowledge of the counting principles, 3 separate experiments assessed a child's ability to detect errors in a puppet's application of the one-one, stable-order and cardinal count principles. In a fourth experiment children counted in different conditions designed to vary performance demands. Since children in the errror-detection experiments did not have to do the counting, we predicted excellent performance even on set sizes beyond the range a young child counts accurately. That they did well on these experiments supports the view that errors in counting—at least for set sizes up to 20—reflect performance demands and not the absence of implicit knowledge of the counting principles. In the final experiment, where children did the counting themselves, set size did affect their success. So did some variations in conditions, the most difficult of which was the one where children had to count 3-dimensional objects which were under a plexiglass cover. We expected that this condition would interfere with the child's tendency to point and touch objects in order to keep separate items which have been counted from those which have not been counted.     

Free recall and retrieval speed of categorized items by kindergarten children

Kindergarten Ss were presented with 16 pictorial items in four category sets or a partially random ordem with one item from each category composing the four presentation sets. The pictures were presented either on conceptually related background pictures or on white backgrounds. The categorically grouped presentation facilitated free recall performance, both in terms of number of items recalled and the speed with which the items were recalled, and increased the amount of clustering in recall. Categorical clustering in recall was associated with shorter within- than between-category intervals and for those Ss who recalled items from each of four categories successively, the over-all temporal pattern in recall closely approximated that found with adults. No background effects were found.     

Developmental change in visual information processing under backward masking

Four-year-olds, eight-year-olds, and college students were compared with respect to their speed and strategy for processing form information in a pointing-recognition task. The target form arrays, varying in size from one to four forms, were presented tachistoscopically, followed by a masking array at varying intervals. No age differences in processing speed were found on single-item arrays, but four-year-olds were progressively slower as array size increased. A selective processing condition resulted in longer processing times for all Ss but was differentially more difficult for four-year-olds. Under the full report conditions, all Ss showed a parallel independent processing strategy as array size increased from one to two items, but four-year-olds did not apply this strategy as efficiently as older Ss. As array size increased from two to four items, only adults and eight-year-olds continued to show parallel independent processing, up to a limit. This age difference in processing strategv for the largest arrays may underlie age differences that have been found in short-term memory capacity.     

Wild hummingbirds rely on landmarks not geometry when learning an array of flowers

Rats, birds or fish trained to find a reward in one corner of a small enclosure tend to learn the location of the reward using both nearby visual features and the geometric relationships of corners and walls. Because these studies are conducted under laboratory and thereby unnatural conditions, we sought to determine whether wild, free-living rufous hummingbirds (Selasphorus rufus) learning a single reward location within a rectangular array of flowers would similarly employ both nearby visual landmarks and the geometric relationships of the array. Once subjects had learned the location of the reward, we used test probes in which one or two experimental landmarks were moved or removed in order to reveal how the birds remembered the reward location. The hummingbirds showed no evidence that they used the geometry of the rectangular array of flowers to remember the reward. Rather, they used our experimental landmarks, and possibly nearby, natural landmarks, to orient and navigate to the reward. We believe this to be the first test of the use of rectangular geometry by wild animals, and we recommend further studies be conducted in ecologically relevant conditions in order to help determine how and when animals form complex geometric representations of their local environments.     

Judgments of recency for long sequences of pictures: the absence of a developmental trend

Recency judgments were examined for four groups (N = 40 per group) aged 7, 8, 10, and 18 years. The Ss were required to choose either the near or far item on a series of test pairs embedded within a long sequence of single inspection items. No age effects were found. Performance was more accurate the longer the separation between the original presentation of the two test items and the shorter the lag from the most recently presented item to the test. Implications for general and developmental theories of memory were discussed. The data supported the hypothesis that tasks, which do not require deliberate mnemonic strategies, are not developmentally sensitive.     

Item frequency in probe-recognition memory search: Converging evidence for a role of item-response learning

In short-term probe-recognition tasks, observers make speeded old–new recognition judgments for items that are members of short lists. However, long-term memory (LTM) for items from previous lists influences current-list performance. The current experiment pursued the nature of these long-term influences—in particular, whether they emerged from item-familiarity or item-response-learning mechanisms. Subjects engaged in varied-mapping (VM) and consistent-mapping (CM) short-term probe-recognition tasks (e.g., Schneider & Shiffrin, Psychological Review, 84, 1–66, 1977). The key manipulation was to vary the frequency with which individual items were presented across trials. We observed a striking dissociation: Whereas increased presentation frequency led to benefits in performance for both old and new test probes in CM search, it resulted in interference effects for both old and new test probes in VM search. Formal modeling suggested that a form of item-response learning took place in both conditions: Each presentation of a test probe led to the storage of that test probe—along with its associated “old” or “new” response—as an exemplar in LTM. These item-response pairs were retrieved along with current-list items in driving observers’ old-– recognition judgments. We conclude that item-response learning is a core component of the LTM mechanisms that influence CM and VM memory search.     

The optional shift performance of reflective and impulsive girls

The optional shift performance of 52 reflective and 50 impulsive second-grade girls was assessed under two response-consequence conditions: (a) reward for correct responses only, and (b) reward for correct responses and a penalty for incorrect responses. Reflection—impulsivity was defined on the basis of performance on the Matching Familiar Figures test. The reflectives showed a significantly greater percentage of reversal shifts than the impulsives. The impulsives showed more reversal shifts under the penalty condition than the reward alone condition whereas the performance of the reflectives was the same in both consequence conditions. A test of statistical association indicated that reflection—impulsivity may be as strongly related to reversal shift performance as age and perceptual pretraining. The results are interpreted as indicating that individual differences in perceptual search strategies may have an important influence on the problem-solving behavior of children.     

Effects of the temporal relationship of feedback and stimulus information upon discrimination-learning strategies

Second grade Ss and college students were tested under three conditions of the temporal relationship of feedback and stimulus information. In one condition (/+3) feedback was delivered immediately upon S's response while the stimuli were still in view. In another (/0) feedback was also immediate but stimuli were extinguished immediately upon S's response. In the third condition (/?3), stimuli were extinguished immediately upon response and feedback was delayed 3 sec. Major findings among the children were (a) Ss of all conditions coded information at the same (high) average efficiency, (b) Ss of conditions /0 and /?3 recoded with significantly less efficiency than those of /+3, and (c) Ss in condition /+3 manifested primarily efficient information-processing strategies, those in condition /0 showed intermediate performance, and those of condition /?3 showed relatively primitive stereotyped behavior. Among adult Ss performance was uniformly high with little effect on any response measure investigated.     

The effects of language conditioning on various aspects of anxiety

Staats' three-function learning theory provides the basis for investigating the effects of emotionally-relevant self-verbalizations (SV) on the physiological, subjective-affective and behavioural aspects of anxiety. Using aversive electric UCSs and slides of snakes (CS), anxiety was classically conditioned in 88 volunteer Ss. In 20 subsequent language-conditioning trials (without aversive electric UCSs), the same snakes slides were paired with UCS verbalizations having either positive or negative connotative meanings. Half of the Ss were exposed to a living snake prior to language conditioning. The results show a complete extinction of the conditioned anxiety response in groups with positive SV whereas negative SV impeded extinction; the latter effect could only be found in groups without exposure to snakes prior to language conditioning. In general, the affective evaluation of snakes improved in groups with positive SV and deteriorated in groups with negative SV. However, these effects were more pronounced in groups without exposure to snakes. Although the results indicate that Ss in all groups with positive SV exhibited more approach behaviours than Ss with negative SV, this trend was not statistically significant. The possible relevance of the results for a language-conditioning approach to anxiety reduction is briefly discussed.     

Covert sensitization, stimulus relevance and the equipotentiality premise

Covert sensitization and related cognitive aversive techniques have been widely used and reviewed but, to date, the issue of the quality and relevance of the aversive imagery selected has yet to be investigated. In the present study, Ss were given a target substance to consume and then presented with narratives designed to elicit either nausea, anxiety or relaxation. The nausea and anxiety scenes were rated as equally aversive but there was a significant reduction in consumption only within the taste-nausea imagery group. These results are consistent with those obtained from the study of taste aversion in infra-human Ss where taste has been shown to associate preferentially with nausea. The present results call into question the validity of the ‘equipotentiality premise’ in cognition. The implications of these findings for the clinical application and evaluation of covert sensitization are discussed.     

Positive contrast obtained in reacquisition following interpolation of nonreinforced or partially reinforced trials

Two experiments investigated the effects of shifting from either nonreinforcement or partial reinforcement (PRF) to continuous reinforcement conditions (CRF). In the first experiment, three groups of rats were given food reinforcement under CRF conditions in a runway followed by regular extinction trials (RE), extinction trials where Ss were delayed for 30 sec before entering the empty goal box (DE), or CRF trials where Ss were delayed for 30 sec before entering the baited goal box (DF). Then all Ss were run on the delayed reinforcement condition (DF). In the final delayed reinforcement condition, group DE ran significantly faster than group DF, reflecting positive contrast. In the second experiment, four groups of rats were trained in a runway to receive either 4% or 18% sucrose reinforcers under either PRF or CRF conditions. Then all Ss were transferred to a Skinner box and bar presses were continuously reinforced, with each S continuing to receive the same sucrose concentration as before. The former PRF Ss, regardless of the reinforcer, bar pressed at a significantly higher rate in the Skinner box than the former CRF Ss. The evidence seemed to favor the view that the effectiveness of a reinforcer is not an absolute, unchanging quantity but rather depends on the historical context in which the reinforcer occurs.     

The role of overt activity in children's sentence production

Nursery schooler's abilityto associate pairs of toys was assessed under four experimental conditions: (1) control, (2) S manipulating the toys, (3) S generating a sentence, and (4) S generating a sentence while manipulating the toys. All three S-involvement conditions produced significantly better recognition performance than the control but contrary to initial predictions, the difference between the sentence-only and sentence-plus-manipulation conditions was not significant. In contrast to previous research, Ss in the sentence-only conditions had little difficulty producing sentences when asked. Of interest was the finding that the quality of sentence production was poorer in the sentence-plus-manipulation condition than in the sentence-only condition. Results are discussed in terms of the possible “conflict” produced when the child is required to engage in more than one overt activity simultaneously.