Objective:

The purpose of this instrumental study was to design and validate a scale that assesses people’s perception regarding the four infidelity dimensions-sexual, emotional, cognitive, and virtual- through two cognition sub-dimensions: reasons and consequences.

Method:

To do this, a specifications table was made, and the items were built, which were subjected to judges’ validation. The scale was adjusted and implemented for a voluntary sample of 301 participants, aged 18-70 ( = 29.84, DE = 14.07), who had basic reading comprehension cognitive skills.

Results:

After the exploratory factor analysis, seven factors were found that explained 48.64% of the total cumulative variance, and the extraction rate allowed all items to remain and confirmed factorial model, with adequate goodness of fit levels of adjustment (CFI = 0.910, RMSEA = 0.049). In addition, the general Cronbach Alpha of 0.84 showed a high reliability of the scale, and with a coefficient of two Guttman halves of .87, a strong relationship was found between the two halves.

Conclusion:

The Cognitive Infidelity Assessment Scale is a pioneering tool that allows the evaluation of the infidelity phenomenon with valid and reliable criteria.

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