Reconstructing the dates of personal events: Gender differences in accuracy

One commonly held stereotype is that females are more concerned with, and attentive to, dates than are males. One possible implication of this idea is that females have a more welldeveloped temporal reference schema than males, which should allow females to reconstruct the dates on which past events have occurred with more accuracy than males. This accuracy hypothesis was assessed by re-analysing the data from four studies collected in previous work on the accuracy of event dating. Analyses of two of the studies yielded evidence for more accurate female dating; analysis of a third study produced a substantial, but non-significant, trend in the predicted direction; and analysis of the fourth study yielded a small, but nonsignificant, reversal. A meta-analysis combining the results of these four studies indicated that the dating accuracy of females was superior to the dating accuracy of males. Additional analyses indicated that these differences were probably not due to differences in self-disclosure patterns.     

The structure of sensory events and the accuracy of time judgments

We investigated how does the structure of empty time intervals influence temporal processing. In experiment 1, the intervals to be discriminated were the silent durations marked by two sensory signals, both lasting 10 or 500 ms; these signals were two identical flashes (intramodal: VV), or one visual flash (V) followed by an auditory tone (A) (intermodal: VA). For the range of duration under investigation (standards = 0.2, 0.6, 1, or 1.4 s), the results indicated that both the marker length and sensory mode influenced discrimination, but no interaction between these variables or between one of these variables and standard duration was significant. In experiment 2, we compared, for each of four marker-type conditions (VV, AA, VA, AV; and standard = 1 s), intervals marked by two 10 ms signals with intervals marked by unequal signal length (markers 1 and 2 lasting 10 and 500 ms, or 500 and 10 ms). As in experiment 1, the results revealed significant marker-mode and marker-length effects, but no significant interaction between these variables. Experiment 3 showed that, for the same conditions as in experiment 2, perceived duration is not influenced by marker length and that the variability of interval reproductions does not depend on the perceived duration of intervals. The results are discussed in the light of a single-clock hypothesis: marker-length and marker-mode effects are presented as being non-temporal sources of variability associated mainly with sensory and memory processes.     

Tachistoscopic applications of Micro Experimental Laboratory (MEL) used with IBM PC compatibles: Stimulus and response timing issues

IBM PCs and compatibles are increasingly used in psychological research for tachistoscopic tasks, which require precise control of timing of stimulus durations and accurate measurement of response latencies. The application of MEL in such research is discussed; several precautions which influence stimulus timing are noted, and some data on measurement error with keypress responses are presented.     

Diagnostic accuracy of the Millon test computer reports for bipolar affective disorder

The diagnostic accuracy of the Millon Clinical Multiaxial Inventory (MCMI) computer reports was assessed for the sample of 48 patients reliably identified as having bipolar affective disorder. Only 13 of the 48 reports were accurate in classifying the patients as having bipolar affective disorder, and this was significantly (p < .01) less than 50% of the cases. The diagnostic accuracy clearly left much to be desired. Additional research is needed to assess the validity of MCMI diagnostic suggestions for other patient groups.     

Experimental control and data acquisition with BASIC in the Apple computer

Laboratory experiments can be precisely controlled and data can be collected using the BASIC language on an Apple II+ computer with 48-KB RAM, disk drive, and two timer-I/O cards. The Apple BASIC makes machine language output control routines necessary, but quite convenient. By compiling BASIC, 50–100 inputs/sec are handled. Applications range from operant research and analog data collection to use of the Apple color display capability for stimulus presentations and response recording.     

Analyzing the accuracy of probability judgments for multiple events: An extension of the covariance decomposition

The probability score (PS) can be used to measure the overall accuracy of probability judgments for a single event, e.g., “Rain falls,” or “This patient has cancer.” It has been shown previously how a “covariance decomposition” of the mean of PS over many occasions indexes several distinct aspects of judgment performance (J. F. Yates, Organizational Behavior and Human Performance, 30, 132–156 (1982)). There are many situations in which probability judgments are reported for sample space partitions containing more than one event and its complement, e.g., medical situations in which a patient might suffer from Disease X, Disease Y, or Disease Z, or testing situations in which the correct answer to an item might be any one of alternatives (a) through (e). The probability score for multiple events (PSM) serves as a measure of the overall accuracy of probability judgments for the events in partitions of any size. The present article describes and interprets an extension of the covariance decomposition to the mean of PSM. The decomposition is illustrated with data from two contexts, medicine and education.     

关于“医学检验”向“检验医学”转变的思考

“医学检验”伴随着临床化学、临床血液学、临床微生物学、临床免疫学、临床分子诊断学等学科的发展,进一步走向深化与细化。然而检验与临床之间隔阂愈演愈烈的现状,显示出还原论指导思想下的“医学检验”模式将难以适应现代医学的发展趋势,进而向着以系统论为哲学指导思想的“检验医学”模式的转变,其间正经历着一场由还原论到系统论、再实现还原论与系统论辩证统一的演化过程。     

关于"医学检验"向"检验医学"转变的思考

"医学检验"伴随着临床化学、临床血液学、临床微生物学、临床免疫学、临床分子诊断学等学科的发展,进一步走向深化与细化.然而检验与临床之间隔阂愈演愈烈的现状,显示出还原论指导思想下的"医学检验"模式将难以适应现代医学的发展趋势,进而向着以系统论为哲学指导思想的"检验医学"模式的转变,其间正经历着一场由还原论到系统论、再实现还原论与系统论辩证统一的演化过程.     

Personal memories for remote historical events: accuracy and clarity of flashbulb memories related to World War II

One hundred forty-five Danes between 72 and 89 years of age were asked for their memories of their reception of the news of the Danish occupation (April 1940) and liberation (May 1945) and for their most negative and most positive personal memories from World War II. Almost all reported memories for the invasion and liberation. Their answers to factual questions (e.g., the weather) were corroborated against objective records and compared with answers from a younger control group. The older participants were far more accurate than what could be predicted on the basis of results from test-retest studies using short delays. The "permastore" metaphor (Bahrick, 1984) provides a possible interpretation of this discrepancy. Participants with reported ties to the resistance movement had more vivid, detailed, and accurate memories than did participants without such ties. Ratings of surprise and consequentiality were unrelated to the accuracy and clarity of the memories.     

A Laboratory Test of the Mirror Image Hypothesis1

Chinese and American nationals participated in an experimental internation simulation as a test of Bronfenbrenner's mirror image hypothesis. Perceptions of own and opposing nations were measured for (1) a rebel movement, and (2) a large power fighting a rebel movement in a foreign nation. The effects of information availability (relevance), and of increasing threat from a third power were also investigated. It was found that evaluative mirror image perceptions of the opposing nation as “bad” and one's own as “good” were easily established. Mirror image perceptions of “they are the aggressors” were found for Chinese, but not for Americans. Information relevance had only limited effects. Threat from a third power produced, in general, decreased mirror image perceptions for subjects representing the large power, but did not affect subjects representing the rebel movement.     

Interference and the representation of events in memory.

Most current models of memory predict that the presence of increasingly well-learned, or strong, items in memory will cause increasing interference. This phenomenon, the list-strength effect, occurs as predicted when memory is tested by free recall but not when a recognition test is used. Four experiments use end-of-session testing to demonstrate that redistribution of storage time or effort from strong to weak items on mixed lists does not occur and therefore cannot be masking interference by strong items. Delay between study and test is found to cause memory loss independent of the basic list-strength findings. It is concluded that the presence of strong items in memory does not interfere with recognition performance and that interference is due to failures of retrieval rather than to composition or other forms of destructive interaction during storage.     

The accuracy of maternal self-reports: Agreement between reports on a computer simulation compared with observed behaviour in the supermarket

The validity of maternal self-reports about their parenting behaviour is evaluated with two studies. In both studies, the mothers were observed shopping in the supermarket with their 2-year-old children. One week later they responded to multiple choice questions on a computer that simulated the experience of shopping with their children. The exact agreement between the two types of data was then assessed. The results from the first study involving 28 mothers revealed some agreement, although it was generally low. In an effort to increase the level of agreement, the computer simulation was revised to allow multiple responses and to clarify some of the simulation vigenettes. A replication study resulted in a considerably higher level of agreement for 22 mothers. Implications of this method for researchers and practitioners are discussed.     

The relationship of computer self-efficacy expectations to computer interest and course enrollment in college

Gender differences in perceived self-efficacy for computer use may help account for differential computer interest and course enrollment at the college level. Three hundred sixty-eight students completed a two-page questionnaire assessing perceived computer self-efficacy, plans to take a computer science course, perceived importance of computing skills, and interest in learning about computers. Men rated themselves higher than did women for perceived self-efficacy. They were also more positive on the cognitive outcome measures, but with computer self-efficacy held constant, the magnitude of these differences was decreased, suggesting that perceived self-efficacy may be an important consideration when examining gender differences in computer interest and use.The author wishes to thank Dr. Martin Ford and Dr. Albert Bandura for their helpful comments on an earlier version of this article. This research was supported by a grant from the San Jose State University Foundation. Portions of this research were reported at the annual meetings of the American Educational Research Association in San Francisco, April 1986.     

Factors affecting the accuracy of facial affect recognition.

The effect of subjects' locus of control of reinforcement and self-monitoring orientations on their ability to identify the emotional meaning of facial expressions was evaluated under competitive and noncompetitive instructions. On the basis of social learning principles, it was predicted that internally controlled, high-self-monitoring American college students would be the most accurate; the results confirmed the prediction. The impact of locus of control and self-monitoring orientations was greatest on male subjects who had received competitive instructions. In addition, female subjects were more accurate than male subjects, and positive emotions were more often correctly identified than negative ones.     

Applications of the PLATO computer system to research in social psychology

The use of the PLATO CAI system in psychological research is discussed. This discussion covers the use of the PLATO system for research in personal space, attribution, person perception, and group decision making. The aspects of the PLATO system that facilitate research in each of these topic areas are discussed in detail. Further modifications of the PLATO system that would enhance its applicability to psychological research are also discussed.