El lugar de las diferencias individuales en la psicología científica

RESUMEN

Una de las pretensiones de este informe consiste en volver a colocar los aspectos biológicos en el sitio que les corresponde en el marco conceptual de lo que entendemos por naturaleza humana, resaltar su importancia y sugerir el tipo de metodologías que serán precisas para asignar a los factores tanto biológicos como sociales el puesto que les corresponde en la explicación de la conducta humana. Se da a entender que ninguna teoría de las diferencias individuales es viable si no está íntimamente vinculada a la concepción bio-social de la conducta humana, cuya motivación viene propiciada tanto por factores biológicos como sociales y culturales, y que muestran que las diferencias respecto a los demás de una especie, en términos de rasgos y aptitudes, están determinados genéticamente y socialmente. A manera de ejemplo, para ilustrar la hipótesis de partida se ha elegido el tema de las diferencias de sexo y genero.     

Working Memory Capacity in High Trait-anxious and Repressor Groups

The verbal reasoning performance of high-anxious (high trait anxiety, low defensiveness), defensive high-anxious (high trait anxiety, high defensiveness), repressor (low trait anxiety, high defensiveness), and low-anxious (low trait anxiety, low defensiveness) groups was examined under high and low memory load conditions. As predicted by the processing efficiency theory (Eysenck & Calvo, 1992), the slowing of reasoning speed with the high memory load was disproportionately great for the high-anxious and defensive high-anxious groups. The effects of high memory load on reasoning speed were the same for the low-anxious and repressor groups, suggesting that both groups had equivalently low levels of worrying (and other anxiety related) task-irrelevant thoughts. Theoretical implications of these, and other findings, for the understanding of repressors were discussed.     

To err again is human: exploring a bidirectional relationship between pressure and performance failure feedback

ABSTRACT

Background and Objectives: While the potentially negative effects of pressure on skilled performance have been well studied in laboratory-based research, theoretically driven questions based on real-world performance data are lacking.

Design: We aimed to test the predictions of the newly developed Attentional Control Theory: Sport (ACTS), using archived play-by-play data from the past seven seasons of the National Football League (American Football).

Methods: An additive scoring system was developed to characterize the degree of pressure on 212,356 individual offensive plays and a Bayesian regression model was used to test the relationship between performance, pressure and preceding negative outcomes, as outlined in ACTS.

Results: There was found to be a clear increase in the incidence of failures on high pressure plays (odds ratio?=?1.20), and on plays immediately following a previous play failure (odds ratio?=?1.09). Additionally, a combined interactive effect of previous failure and pressure indicated that the feedback effect of negative outcomes was greater when pressure was already high (odds ratio?=?1.10), in line with the predictions of ACTS.

Conclusions: These findings reveal the importance of exploring momentary changes in pressure in real-world sport settings, and the role of failure feedback in influencing the pressure-performance relationship.     

Perfectionism and efficiency: Accuracy,response bias,and invested time in proof-reading performance

Investigating problem-solving performance, Ishida, H. (2005). College students’ perfectionism and task-strategy inefficience: Why their efforts go unrewarded? Japanese Journal of Social Psychology, 20, 208–215. Found high levels of perfectionism were associated with lower efficiency. Aiming to replicate and further explore this finding, the present study investigated how two dimensions of perfectionism (high standards, discrepancy between expectations and performance) predicted efficiency in proof-reading performance. N = 96 students completed a proof-reading task involving the detection of spelling, grammar, and format errors. When error-detection performance was subjected to signal detection analysis, high standards correlated positively with the number of incorrectly detected errors (false alarms). Moreover, when task-completion time was taken into account, high standards were negatively correlated with efficiency (accuracy/time). In comparison, discrepancy correlated negatively with the number of correctly detected errors (hits) and positively with a conservative response bias. The findings show that perfectionistic standards are associated with reduced efficiency demonstrating the importance of considering invested time, errors, and response bias when investigating the relationship between perfectionism and performance.     

Visual marking: a convergence of goal- and stimulus-driven processes during visual search

Watson and Humphreys (1997) proposed that visual marking is a goal-directed process that enhances visual search through the inhibition of old objects. In addition to the standard marking case with targets at new locations, included in Experiment 1 was a set of trials with targets always at old locations, as well as a set of trials with targets varying between new and old locations. The participants' performance when detecting the target at old locations was equivalent to their performance in the full-baseline condition when they knew the target would be at old locations, and was worse when the target appeared at old locations on 50% of the trials. Marking was observed when the target appeared at new locations. In Experiment 2, an offset paradigm was used to eliminate the influence of the salient abrupt-onset feature of the new objects. No significant benefits were found for targets at new locations in the absence of onsets at new locations. The results suggest that visual marking may be an attentional selection mechanism that significantly benefits visual search when (1) the observer has an appropriate search goal, (2) the goal necessitates inhibition of old objects, and (3) the new objects include a salient perceptual feature.