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Validation of the Vanderbilt Holistic Face Processing Test

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ABSTRACT

The Vanderbilt Holistic Face Processing Test (VHPT-F) is a new measure of holistic face processing with better psychometric properties relative to prior measures developed for group studies (Richler et al., 2014). In fields where psychologists study individual differences, validation studies are commonplace and the concurrent validity of a new measure is established by comparing it to an older measure with established validity. We follow this approach and test whether the VHPT-F measures the same construct as the composite task, which is group-based measure at the center of the large literature on holistic face processing. In Experiment 1, we found a significant correlation between holistic processing measured in the VHPT-F and the composite task. Although this correlation was small, it was comparable to the correlation between holistic processing measured in the composite task with the same faces, but different target parts (top or bottom), which represents a reasonable upper limit for correlations between the composite task and another measure of holistic processing. These results confirm the validity of the VHPT-F by demonstrating shared variance with another measure of holistic processing based on the same operational definition. These results were replicated in Experiment 2, but only when the demographic profile of our sample matched that of Experiment 1.

No MeSH data available.


Mean performance for all holistic processing measures.(A) Accuracy on congruent and incongruent trials in the VHPT-F. (B) Sensitivity (d’) as a function of congruency and alignment in the composite task. (C) Accuracy for same-incongruent aligned and misaligned trials in the composite task. Error bars show 95% confidence intervals for within-subject effects (Loftus and Masson, 1994).
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Figure 3: Mean performance for all holistic processing measures.(A) Accuracy on congruent and incongruent trials in the VHPT-F. (B) Sensitivity (d’) as a function of congruency and alignment in the composite task. (C) Accuracy for same-incongruent aligned and misaligned trials in the composite task. Error bars show 95% confidence intervals for within-subject effects (Loftus and Masson, 1994).

Mentions: Mean performance for all holistic processing measures is shown in Figure 3. A repeated measures ANOVA on VHPT-F accuracy with congruency (congruent/incongruent) as a factor revealed significant holistic processing (better performance on congruent vs. incongruent trials; F1,114 = 495.59, MSE = 48.72, p < 0.001, = 0.81). A 2 (congruency: congruent/incongruent) × 2 (alignment: aligned/misaligned) repeated measures ANOVA on d’ in the composite task also revealed significant holistic processing: performance was better on congruent versus incongruent trials (F1,114 = 110.19, MSE = 0.16, p < 0.001, = 0.49) and this congruency effect was significantly larger on aligned versus misaligned trials (F1,114 = 75.57, MSE = 0.08, p < 0.001, = 0.40). There was also a significant main effect of alignment (F1,114 = 76.16, MSE = 0.10, p < 0.001, = 0.40).


Validation of the Vanderbilt Holistic Face Processing Test
Mean performance for all holistic processing measures.(A) Accuracy on congruent and incongruent trials in the VHPT-F. (B) Sensitivity (d’) as a function of congruency and alignment in the composite task. (C) Accuracy for same-incongruent aligned and misaligned trials in the composite task. Error bars show 95% confidence intervals for within-subject effects (Loftus and Masson, 1994).
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Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5120110&req=5

Figure 3: Mean performance for all holistic processing measures.(A) Accuracy on congruent and incongruent trials in the VHPT-F. (B) Sensitivity (d’) as a function of congruency and alignment in the composite task. (C) Accuracy for same-incongruent aligned and misaligned trials in the composite task. Error bars show 95% confidence intervals for within-subject effects (Loftus and Masson, 1994).
Mentions: Mean performance for all holistic processing measures is shown in Figure 3. A repeated measures ANOVA on VHPT-F accuracy with congruency (congruent/incongruent) as a factor revealed significant holistic processing (better performance on congruent vs. incongruent trials; F1,114 = 495.59, MSE = 48.72, p < 0.001, = 0.81). A 2 (congruency: congruent/incongruent) × 2 (alignment: aligned/misaligned) repeated measures ANOVA on d’ in the composite task also revealed significant holistic processing: performance was better on congruent versus incongruent trials (F1,114 = 110.19, MSE = 0.16, p < 0.001, = 0.49) and this congruency effect was significantly larger on aligned versus misaligned trials (F1,114 = 75.57, MSE = 0.08, p < 0.001, = 0.40). There was also a significant main effect of alignment (F1,114 = 76.16, MSE = 0.10, p < 0.001, = 0.40).

View Article: PubMed Central - PubMed

ABSTRACT

The Vanderbilt Holistic Face Processing Test (VHPT-F) is a new measure of holistic face processing with better psychometric properties relative to prior measures developed for group studies (Richler et al., 2014). In fields where psychologists study individual differences, validation studies are commonplace and the concurrent validity of a new measure is established by comparing it to an older measure with established validity. We follow this approach and test whether the VHPT-F measures the same construct as the composite task, which is group-based measure at the center of the large literature on holistic face processing. In Experiment 1, we found a significant correlation between holistic processing measured in the VHPT-F and the composite task. Although this correlation was small, it was comparable to the correlation between holistic processing measured in the composite task with the same faces, but different target parts (top or bottom), which represents a reasonable upper limit for correlations between the composite task and another measure of holistic processing. These results confirm the validity of the VHPT-F by demonstrating shared variance with another measure of holistic processing based on the same operational definition. These results were replicated in Experiment 2, but only when the demographic profile of our sample matched that of Experiment 1.

No MeSH data available.