Statistical versus clinical significance in research with the MMPI

Some of the contradictions in psychological research may be attributable to failure to distinguish statistical from clinical significance. 82 articles in which the MMPI was the research instrument were analyzed to see how often the results reported as significant were in fact large enough to warrant such a conclusion. Articles were classified as to whether or not the clinical interpretations were consistent with the statistical results. Excluding articles in which data were insufficient to reach an independent conclusion, 54.90% of the articles presented conclusions of clinical significance that were not supported by the data, while 45.10% reported clinical results that were supported by the data.     

Intensity and frequency: dimensions underlying positive and negative affect

Research on emotions and several happiness scales suggest that positive and negative affect are strongly inversely correlated. However, work on subjective well-being indicates that over time, positive and negative affect are independent across persons. In order to reconcile this inconsistency, two dimensions are proposed for personal affective structure: the frequency of positive versus negative affect and the intensity of affect. Subjects in three studies completed daily and momentary reports on their moods. In support of the intensity dimension, the correlations between positive and negative intensity were strong and positive in all three studies. The intensities of specific emotions across persons were also highly correlated. Across the three studies the frequency and intensity of affect varied independently. Although average levels of positive and negative affect showed low correlations, this relation became strongly inverse when intensity was partialed out. Thus the intensity dimension helps explain the relative independence of positive and negative affect. In addition, emotional intensity is offered as a new personality dimension that manifests interesting characteristics.     

The opponent process theory and affective reactions

Solomon (1980) proposed an opponent process theory to account for motivational and affective dynamics. This theory asserts that the brain avoids extremes of emotional experience by countering the stimulation it receives with an opposite or opponent reaction. Opponent processes are thought to be responsible for the characteristic changes in affective experience that occur over time, and to account for the dynamics of affective response to such stimuli as skydiving and sauna bathing, which have heretofore been difficult to explain. However, the relevance of this theory for affective experiences in general (beyond physical stimuli and addictions) has yet to be demonstrated. The present paper examines opponent process theory predictions in two settings, involving affective responses to situation-scenarios and emotion-provoking slides. In each study, significant habituation to both positive and negative affective stimuli was found, as the opponent process theory would predict. Subjects also showed a reversal of affect when the stimuli were reversed from positive to negative or vice versa. However, contrary to opponent process theory predictions, there was no evidence that withdrawal responses were greater after habituation to the affective stimulus. The only instance of a significant difference in withdrawal responses was actually in a direction opposite to that which the opponent process theory predicts. All other predicted differences were not significant. The opponent process theory, therefore, was not supported in these data and appears to need revision or qualification as to its domains of application.     

Cultural–historical knowledge and personal experience in appreciation of literature

Appreciation of literature (understanding beyond literal comprehension and inference) is hypothesized to depend on readers' application of knowledge derived from personal experiences, a cognitive process called personal resonance. The influence of cultural differences in personal experience on appreciating a literary work was studied through retrospective reports about remindings that occurred while reading. A Hungarian short story in which geographical and temporal location were left open was read by Danish (culturally distant) and Hungarian (culturally proximate) subjects. Cultural proximity was found to influence considerably readers' location and overall evaluation of the story as well as the nature of remindings during the reading process. The culturally proximate Hungarian readers exhibited a higher level of personal resonance: they had more vivid remindings and were reminded of more complete events (as opposed to decontextualized event elements), particularly more personally experienced events. The personal relevance, pleasantness, and aggressiveness of the evoked memories were important determinants of readers' overall evaluation of the story, but with very different patterns in the two cultural groups.     

Person x situation interactions: choice of situations and congruence response models

Two models of Person x Situation interaction wee examined. The first model predicts that there is a relation between personality and the situations people naturally choose to be in; the second model predicts that when there is congruence between the situation and personality, a person will experience more positive and less negative affect. These models were investigated by using mood and activity reports gathered on 3,512 occasions sampled randomly from the everyday lives of 42 subjects. Situational dimensions were related to some but not all personality variables investigated. Need for order predicted choice of typical situations and extraversion correlated with time spent recreating socially. However, it was found that individuals did not spend more time in those settings where they experienced more positive emotions nor less time in those situations where they experienced more negative affect. In terms of the affect-congruence model, several predicted relations wee found, but several others did not reach significance. The failure of the affect-congruence model to be consistently supported was probably because the affect of individuals was relatively consistent across situations. The present results suggest that although some theoretically meaningful Person x Situation interactions do occur, they are not necessarily strong or easily predictable.     

THE PSYCHOLOGICAL REALITY OF LINGUISTIC SEGMENTS RECONSIDERED

LARSEN, S. F. The psychological reality of linguistic segments reconsidered. Scand. J. Psychol. , 1971, 12, 113–118.–Experiments using the so-called click-technique (Fodor & Bever, 1965) and testing the hypothesis that linguistic constituents are the units of speech perception are shown to rest on logically inadequate analysis of the data. Therefore the hypothesis was submitted to another test in the present experiment, and it was not substantiated. At the same time a predictiondirectly testing the basic postulate of the click-technique, viz., that auditory perceptual units resist interruptions by clicks, was clearly disconfirmed. However, due to insufficient precision of the postulate, results obtained by this technique seems uninterpretable at present.     

The Effects of a Can’t-Answer Response Option and Instructions on Stimulus Equivalence

The Psychological Record - Two interlocking conditional discriminations were established in a paper-and-pencil match-to-sample format by written rule-like instructions to 104 college...     

The efficiency of holistic template matching in the recognition of unconstrained handwritten digits

Summary Psychological evidence suggests that simple visual patterns can be recognized by the use of internal representations as holistic templates, but the efficiency of holistic template matching in the recognition of real-life patterns, such as handwritten characters, has been doubted. To clarify this issue, we measured the efficiency of holistic template matching in machine recognition of totally unconstrained handwritten digits. Our learning and recognition algorithm was simple; no previous knowledge of handwritten digits was presupposed, and preprocessing was limited to Gaussian smoothing and normalization with respect to position, size, and orientation. For patterns presented in a known orientation, recognition rates were .69, .77, and .88, respectively, when about 5, 10, or 50 templates had been learned for each type of digit. For patterns presented in unknown orientations, recognition rates were slightly lower. High levels of reliability could be attained by the discounting of classifications based on weak evidence. Apparently, in high reliability recognition, holistic template matching can be used as a first operation by which recognition is achieved for most of the handwritten digits that are seen in real life.