Emotional Promiscuity Scale

Abstract

The Emotional Promiscuity Scale (also known in contemporary personality and relationship science as the Emophilia Scale; EP Scale) is an empirical psychometric instrument developed by Daniel Nelson Jones to measure individual differences in emotional promiscuity—defined as the stable disposition to fall in love quickly, easily, frequently, and with relatively low thresholds of discrimination. While psychological science historically concentrated on the physical dimensions of relational promiscuity via the construct of sociosexuality, the emotional dimension remained under-theorized and unmeasured until the introduction of the EP Scale. Composed of 10 self-report items evaluated on a combination of a 5-point Likert scale and a standardized frequency metric, the scale yields a unidimensional index of romantic hyper-reactivity and fascination with the phenomenology of falling in love.

Initial psychometric evaluations across collegiate ($N = 142$) and broad community web-based samples ($N = 775$) established that emotional promiscuity demonstrates adequate internal consistency (Cronbach’s $\alpha$ ranging from .69 to .73 across cohorts), an invariant unrotated single-factor structure across multiple independent datasets, and distinct discriminant validity against traditional sexual promiscuity as indexed by the Sociosexual Orientation Inventory (SOI) and generalized romantic idealism via the Romantic Beliefs Scale. Longitudinal and criterion-related validations demonstrate that elevated scores on the EP Scale uniquely predict relationship velocity, serial pair-bonding, an elevated quantity of concurrent romantic attractions, emotional infidelity, and distinct epidemiological risks associated with the premature cessation of barrier contraception due to rapid perceived intimacy. This article provides a comprehensive psychometric and theoretical analysis of the scale, elucidating its nomological network, construct boundaries, neurobiological underpinnings, structural properties, and behavioral implications across relationship science.

Keywords

Emotional Promiscuity Scale, Emophilia, Love-Proneness, Romantic Attachment, Sociosexual Orientation Inventory, Pair-Bonding Velocity, Infidelity, Relationship Formation, Dark Triad Attraction, Psychometrics

Authors

The scale was developed and psychometrically validated by Daniel Nelson Jones, Ph.D., primarily conducted during his tenure at the University of British Columbia (Department of Psychology, 2136 West Mall, Vancouver, BC, Canada, V6T 1Z4; email: [email protected]), in close collaboration with Delroy L. Paulhus. Dr. Jones later continued his empirical research program on emotional promiscuity, behavioral infidelity, personality assessment, and malevolent social traits (the Dark Triad of personality) at the University of Texas at El Paso and the University of Nevada, Reno.

Purpose

The development of the Emotional Promiscuity Scale was catalyzed by an empirical void in interpersonal, personality, and evolutionary psychology. For decades, relationship science operationalized non-restrictive relational behavior almost exclusively through the lens of sexual promiscuity. Scales such as the Sociosexual Orientation Inventory (Simpson & Gangestad, 1991) systematically quantified willingness to engage in uncommitted sexual interactions, short-term mating orientations, and behavioral tallies of sexual partners. However, this heavy reliance on physical indices obscured an independent behavioral phenotype: individuals who exhibit an unrestrained, highly frequent, and rapid propensity toward romantic connection and pair-bonding, entirely independent of physical intimacy.

Theoretical and Practical Rationale

The primary rationale for the EP Scale rests upon the dissociation between human attachment systems and sexual desire systems (Diamond, 2004). While some individuals seamlessly navigate uncommitted physical liaisons without emotional entanglement, others experience rapid, profound emotional attachments with minimal cognitive friction. Understanding why certain individuals perpetually cycle through passionate attachments requires an instrument sensitive to emotional speed (velocity of pair-bonding), frequency (total instances of falling in love), and selectivity (the discrimination threshold applied to prospective romantic targets).

Research Applications

In academic research, the EP Scale fulfills several crucial methodological roles:

• Disentangling Emotional vs. Sexual Orientations: It permits behavioral scientists to examine whether specific relational phenomena (e.g., romantic jealousy, mate-poaching vulnerability, partner surveillance) stem from physical libido or an hyperactive attachment-formation mechanism.
• The Dark Triad Mate Selection Paradigm: Subsequent research utilizing the EP Scale has demonstrated that emotionally promiscuous individuals are disproportionately susceptible to the superficial charms of individuals exhibiting narcissistic, psychopathic, and Machiavellian traits, as their rapid attachment velocity blinds them to interpersonal red flags.
• Longitudinal Tracking of Relational Trajectories: The scale enables researchers to model relationship churning, unstable serial monogamy, rebound dynamics, and rates of both emotional and physical infidelity over time.

Clinical, Preventative, and Epidemiological Applications

From an applied clinical and public health perspective, the EP construct carries urgent diagnostic utility. Empirical investigations have established that perceived emotional intimacy functions as a psychological heuristic for safety: when individuals believe they are deeply in love, their subjective perception of risk regarding sexually transmitted infections (STIs) precipitously declines (Manuel, 2005). Consequently, emotionally promiscuous individuals tend to abandon barrier contraceptives (e.g., condoms) exceptionally early in nascent relationships, mistakenly substituting rapid emotional connection for physical prophylactic safety (Rosenthal et al., 1998).

In psychotherapeutic settings, measuring emotional promiscuity offers insight into clients who present with chronic heartbreak, borderline affective lability in interpersonal contexts, or patterns of rapid relationship enmeshment followed by disillusionment. Assessing a client’s EP profile allows clinicians to distinguish between anxious attachment protest behaviors and an appetitive, sensation-seeking enchantment with the early stages of romantic love.

Psychological Construct

The psychological construct captured by the Emotional Promiscuity Scale—subsequently designated in contemporary literature as emophilia—is defined as an individual difference trait reflecting a heightened propensity to fall in love quickly, frequently, and indiscriminately. Emophilia is not merely an elevated capacity for deep affection; rather, it represents an orientation characterized by a chronically lowered cognitive, affective, and relational threshold for the elicitation of passionate romantic pair-bonds.

Core Dimensions of the Construct

The construct encompasses four intersecting phenomenological components:

• Temporal Acceleration (Velocity): The subjective sensation of romantic connection ignites almost immediately upon encounter. Where normative pair-bonding entails an extended appraisal phase involving reciprocal self-disclosure, mutual vetting, and gradual intimacy development, high-EP individuals bypass these stages, experiencing full-blown romantic feelings “right away.”
• Frequency and Multiplicity: The trait manifests as a high lifetime incidence of falling in love. Rather than viewing romantic love as an infrequent, rare life milestone, high-EP individuals fall in love repeatedly across their developmental trajectory, often harboring romantic attachments to multiple partners simultaneously.
• Indiscriminacy (Lowered Selective Thresholds): Normative mate selection involves stringent criteria, particularly regarding partner character, reliability, and complementarity. High-EP individuals exhibit broad, unselective acceptance thresholds, projecting romantic ideals onto partners who demonstrate minimal objective compatibility.
• Enamoration with the Phenomenon of Love: Central to the construct is an intense affective fascination with the subjective state of limerence itself (e.g., endorsed via items such as “I love the feeling of falling in love”). For the emotionally promiscuous individual, the biochemical and psychological euphoria of the early honeymoon phase functions as an appetitive reinforcer.

Construct Differentiation and Boundary Conditions

To establish construct validity, emotional promiscuity must be rigorously demarcated from related psychological constructs:

1. Emotional Promiscuity vs. Sociosexuality (Sexual Promiscuity): As demonstrated by Simpson and Gangestad (1991), sociosexuality reflects uncommitted sexual behavior and permissive sexual attitudes. Emotional promiscuity, by contrast, operates on the attachment/pair-bonding axis. An individual can possess an unrestricted sociosexual orientation while being low in emotional promiscuity (i.e., engaging in casual sex without emotional involvement), or conversely, exhibit high emotional promiscuity while maintaining a highly restricted sexual orientation (i.e., falling passionately in love with several individuals yet refusing to engage in non-committed or premarital sexual behaviors).

2. Emotional Promiscuity vs. Romanticism: Romanticism, as measured by the Romantic Beliefs Scale (Sprecher & Metts, 1989), represents an ideological, cognitive schema regarding the nature of true love (e.g., believing in soulmates, love at first sight, love overcoming all obstacles). Although high-EP individuals may endorse romantic beliefs, romanticism is a philosophical framework, whereas emotional promiscuity is an affective, behavioral, and motivational disposition toward rapid, recurrent pair-bonding.

3. Emotional Promiscuity vs. Anxious Attachment: While both constructs involve an intense desire for interpersonal closeness, their motivational architectures diverge. Anxious attachment is rooted in relational insecurity, hyperactivating distress strategies, fear of abandonment, and negative self-models. Emotional promiscuity, conversely, is characterized primarily by positive appetitive drive, hedonic enthusiasm for romantic ideation, and an eagerness to plunge into new relationships, rather than a defensive response to perceived rejection.

Theoretical Framework

The Emotional Promiscuity Scale is grounded in modern evolutionary psychology, neurochemical models of pair-bonding, and the dual-system theoretical framework of human mating.

The Dual-System Framework of Love and Desire

The foundational theoretical assumption underlying the EP Scale is the definitive separation between romantic love (pair-bonding) and sexual desire (lust), synthesized extensively by Lisa Diamond (2004). Evolutionary theorists historically viewed romantic love merely as an epiphenomenon or cultural gloss over reproductive drive. However, neurobiological, physiological, and behavioral evidence indicates that mammalian mating involves at least two distinct, semi-independent neural architectures:

• The Lust/Mating System: Governed primarily by gonadal estrogens and androgens (testosterone), this system evolved to motivate individuals to seek sexual union with a range of viable reproductive partners.
• The Attraction and Pair-Bonding System: Mediated predominantly by central catecholamines (dopamine, norepinephrine) and neurohypophysial peptides (oxytocin, vasopressin), this system evolved to direct focused reproductive energy toward a specific individual, facilitating the immense parental investment required for altricial hominin offspring.

Because these neurochemical networks can be activated independently, humans routinely experience sexual desire without romantic longing, as well as profound romantic attachment without intense initial sexual lust. Harms, Williams, and Paulhus (2001) empirically operationalized this divergence by distinguishing between “lust-proneness” and “love-proneness,” documenting that individual variation in one system does not dictate sensitivity in the other. The EP Scale serves as the standardized psychometric realization of this independent attachment-seeking dimension.

Evolutionary Life History and Mating Trade-Offs

From an evolutionary perspective (Buss & Schmitt, 1993; Gangestad & Simpson, 2000), pair-bonding carries both significant fitness benefits (e.g., biparental care, pooled resource acquisition, physical protection) and severe adaptive costs (e.g., commitment to a sub-fertile or unfaithful partner, misdirected parental investment, social conflict). Consequently, ancestral humans evolved adaptive cognitive mechanisms to carefully calibrate their attachment threshold.

Emotional promiscuity represents a behavioral phenotype positioned at an extreme of this calibration spectrum. By lowering the threshold required to trigger the neurochemical cascade of limerence, high-EP individuals optimize their capacity to form rapid alliances and secure pair-bonds quickly. However, this strategy carries severe evolutionary hazards: rapid romantic commitment inevitably diminishes the opportunity to thoroughly vet prospective mates for fitness indicators, antisocial tendencies, or deceptive strategies, rendering high-EP individuals extraordinarily vulnerable to manipulative or exploitative consorts.

Validity

Extensive psychometric investigations have established the construct, convergent, discriminant, and criterion-related validity of the Emotional Promiscuity Scale across college student cohorts and diverse community samples.

Convergent Validity

To evaluate convergent validity, Jones and Paulhus examined the relationship between the EP Scale and established relational instruments:

• Romantic Beliefs Scale: In the collegiate sample ($N = 142$), EP demonstrated significant positive correlations with the Romantic Beliefs Scale for both men ($r = .24, p < .01$) and women ($r = .34, p < .001$). This confirms that individuals who fall in love easily and frequently maintain cognitive schemas that celebrate idealistic concepts of romantic destiny.
• Adult Attachment Dimensions: Across both collegiate and online community samples ($N = 775$), EP exhibited a consistent, moderate positive correlation with anxious attachment (measured via the Experiences in Close Relationships scale; ECR). High-EP individuals experience heightened preoccupation with relational availability. Conversely, EP correlated negatively to moderately negatively with avoidant attachment, underscoring that emotionally promiscuous individuals do not retreat from emotional vulnerability or intimacy.
• Long-Term Mating Orientation: Among women across multiple cohorts, EP scores demonstrated a small but statistically significant positive association with a long-term mating orientation. This provides crucial evidence that female emotional promiscuity is fundamentally structured around pair-bonding and relationship formation rather than short-term casual encounters.

Discriminant Validity

Crucially, the scale exhibits robust discriminant validity against potential confounding variables:

• Independence from Sexual Promiscuity (SOI): In the student sample, the correlation between the EP Scale and the Sociosexual Orientation Inventory among men was essentially zero ($r = -.01, p = .91$), while among women it reached a modest $r = .27, p < .01$. In the large community web sample, correlations remained negligible to minor ($r = .13$ for men, $r = .09$ for women). These empirical findings confirm that emotional promiscuity is conceptually and psychometrically distinct from casual sexual permissiveness.
• Personality Traits (The Big Five): Correlation with the Big Five Inventory (John & Srivastava, 1999) revealed that the EP Scale is largely independent of general personality traits, with the sole exception of a moderate positive correlation with Openness to Experience in men ($r = .38, p < .01$). It showed no significant confound with general Neuroticism or Extraversion, demonstrating that emophilia is not merely a manifestation of generalized negative affect or social gregariousness.
• Age and Cognitive Ability: Correlations with participant age were negligible across studies ($r = .10$ in students; $r = -.03$ in community samples), indicating that individual differences in emotional promiscuity remain stable across the adult lifespan. The scale demonstrated a modest negative correlation with measures of general cognitive ability (IQ) across sexes, suggesting a minor link between high emophilia and intuitive rather than deliberative cognitive styles.

Criterion-Related and Predictive Validity

The definitive test of the EP Scale lies in its capacity to predict objective relationship phenomena. In an intensive longitudinal behavioral tracking study (Jones & Paulhus, 2010; Jones, 2011), participants maintained prospective weekly logs detailing their romantic and sexual attraction profiles:

• Prediction of Total Romantic Targets: Baseline EP scores significantly predicted the total number of distinct romantic interests accrued by participants over the tracking period, establishing that high-EP scores reflect tangible interpersonal behaviors rather than mere aspirational self-presentation.
• Sole Predictor of Emotional Infidelity: While sexual sociosexuality (SOI) uniquely predicted physical infidelities, the EP Scale emerged as the lone, statistically significant predictor of emotional infidelity (operationalized by continuous discrepancies between participants’ declared relationship partners and their primary weekly romantic focus).
• General Infidelity Indices: In cross-sectional community analyses, EP scores correlated significantly with historical self-reported relationship infidelity among men and showed a consistent positive trend among women.

Reliability

The reliability of the Emotional Promiscuity Scale has been rigorously evaluated across diverse demographics, establishing its stability and internal coherence.

Internal Consistency

Initial validation studies conducted by Jones examined internal consistency across two primary research populations:

• University Student Sample ($N = 142$): The sample consisted of university students of European ancestry. Cronbach’s alpha coefficient was calculated at $\alpha = .69$ identically for both male and female sub-samples. Item-total correlations confirmed that each of the 10 items contributed positively to the underlying metric.
• Broad Community Web-Based Sample ($N = 775$): Administered via online psychometric portals to a highly heterogeneous population spanning ages 16 to 71, internal consistency improved, yielding a Cronbach’s alpha of $\alpha = .73$ for female participants and $\alpha = .70$ for male participants.

In subsequent contemporary replications across cross-cultural samples evaluating emophilia, Cronbach’s alpha coefficients and McDonald’s omega ($\omega$) have systematically ranged between $.72$ and $.81$, indicating robust internal reliability for a brief 10-item unidimensional inventory.

Measurement Error and Test-Retest Stability

The standard error of measurement (SEM) across standard administrations has remained low, confirming adequate precision across the continuum of the latent trait. Longitudinal implementations over intervals ranging from 6 to 12 weeks indicate strong test-retest reliability ($r_{tt} > .75$), demonstrating that emotional promiscuity operates as a chronic, enduring personality disposition rather than a transient, state-dependent mood oscillation.

Factor Analysis

The structural dimensionality of the Emotional Promiscuity Scale was derived through rigorous exploratory (EFA) and confirmatory (CFA) factor analytic procedures.

Initial Scale Construction and EFA

The item generation phase commenced with a wide-ranging, over-inclusive pool of prospective items capturing behavioral frequency, affective reactivity, romantic preoccupation, and identity-level self-descriptions. To reduce this pool to an efficient, psychometrically sound instrument, the developer executed a series of exploratory principal axis factor analyses accompanied by part-whole correlation screenings across four independent preliminary datasets.

Across all four development datasets, examination of eigenvalues, Cattell’s scree plots, and parallel analysis consistently pointed to a dominant unidimensional solution. Specifically:

• A single primary unrotated factor accounted for the overwhelming majority of shared item variance.
• The scree test demonstrated a severe, distinct drop in eigenvalue magnitude following the first extraction, with secondary factors failing to achieve substantive empirical or conceptual meaning.
• Items were retained in the final 10-item instrument exclusively if they exhibited salient, stable factor loadings ($ge .40$) on this initial unrotated factor across all four developmental cohorts.

Confirmatory Factor Analysis and Structural Invariance

Subsequent psychometric examinations using confirmatory factor modeling have consistently supported the unidimensional model across both male and female populations. When error variances between closely phrased parallel items (e.g., Item 6 regarding simultaneous romantic connections and Item 7 regarding concurrent historical loves) are appropriately modeled, the single-factor specification exhibits acceptable to excellent model fit:

• Comparative Fit Index (CFI): Values routinely exceed $.92$ to $.95$.
• Tucker-Lewis Index (TLI): Coefficients align closely with CFI thresholds ($ge .91$).
• Root Mean Square Error of Approximation (RMSEA): Estimates consistently fall between $.045$ and $.068$, well below the conventional $.08$ cutoff for acceptable model approximation.
• Standardized Root Mean Square Residual (SRMR): Observed values consistently remain below $.05$.

Factorial invariance testing across biological sex has established configural and metric invariance, confirming that the factor structure and the individual item factor loadings reflect equivalent psychological meanings across men and women, thus justifying direct cross-gender score comparisons.

Instrument / Measurement Tool

• Instrument Name: Emotional Promiscuity Scale (EP Scale; also referenced in clinical literature as the Emophilia Scale).
• Author: Daniel Nelson Jones, Ph.D.
• Construct Assessed: Individual differences in emotional promiscuity (the tendency to fall in love quickly, frequently, and indiscriminately).
• Administration Format: Self-administered paper-and-pencil or computerized/web survey.
• Target Population: Adults (aged 16 and older); validated across university and heterogeneous community cohorts.
• Administration Time: Extremely brief, typically requiring less than 1 to 2 minutes to complete.
• Total Items: 10 items (9 attitudinal/evaluative statements and 1 cumulative behavioral frequency item).
• Response Anchors (Items 1 to 9): Rated on a 5-point Likert agreement scale:
  • 1 = Strongly Disagree
  • 2 = Disagree
  • 3 = Neither Agree nor Disagree
  • 4 = Agree
  • 5 = Strongly Agree
• Response Anchors (Item 10): Categorical lifetime frequency scale scored from 1 to 5 points:
  • A = None (Scored as 1)
  • B = 1 (Scored as 2)
  • C = 2 (Scored as 3)
  • D = 3 (Scored as 4)
  • E = 4 or More (Scored as 5)
• Scoring and Transformation Rules:
  • Reverse Scored Items: Item 2 (“For me, romantic feelings take a long time to develop”) and Item 5 (“I am not the type of person who falls in love”) must be reverse-coded prior to composite calculation ($1 \rightarrow 5, 2 \rightarrow 4, 3 \rightarrow 3, 4 \rightarrow 2, 5 \rightarrow 1$).
  • Composite Score Calculation: Calculate the unweighted arithmetic mean of all 10 items (yielding an index ranging from 1.00 to 5.00), or alternatively compute the summed total score (ranging from 10 to 50). Higher aggregate scores reflect greater degrees of emotional promiscuity / emophilia.
• Normative Reference Values: In collegiate cohorts, typical overall item means hover around $M = 2.81$ ($SD \approx 0.65$) for females and $M = 2.99$ ($SD \approx 0.70$) for males. In broad internet community samples, typical item means are somewhat higher, averaging $M = 3.36$ for females and $M = 3.45$ for males.

Permissions & Fee and Test Year

The Emotional Promiscuity Scale was originally developed and disseminated in 2009 by Daniel Nelson Jones through scholarly presentations and manuscripts (subsequently culminating in formal publication in the Journal of Social and Personal Relationships in 2011 under the construct moniker emophilia). The instrument is placed in the public domain for academic, scientific, non-commercial research, and educational applications. No licensing fees or formal commercial royalties are required to administer the scale for non-commercial psychometric research.

Researchers and clinical investigators utilizing the instrument are expected to cite the foundational scientific publications by Dr. Daniel N. Jones and Dr. Delroy L. Paulhus. For commercial applications, diagnostic battery integrations, or proprietary corporate adaptations, explicit formal written permission must be secured by contacting the primary author directly.

References

• Buss, D. M., & Schmitt, D. P. (1993). Sexual Strategies Theory: An evolutionary perspective on human mating. Psychological Review, 100(2), 204–232. https://doi.org/10.1037/0033-295X.100.2.204
• Diamond, L. M. (2004). Emerging perspectives on distinctions between romantic love and sexual desire. Current Directions in Psychological Science, 13(3), 116–119. https://doi.org/10.1111/j.0963-7214.2004.00287.x
• Gangestad, S. W., & Simpson, J. A. (2000). The evolution of human mating: Trade-offs and strategic pluralism. Behavioral and Brain Sciences, 23(4), 573–587. https://doi.org/10.1017/s0140525x0000337x
• Harms, P. D., Williams, K. M., & Paulhus, D. L. (2001). Predictors of love-proneness vs. lust-proneness. Poster presented at the 109th annual convention of the American Psychological Association, San Francisco, CA.
• John, O. P., & Srivastava, S. (1999). The Big Five trait taxonomy: History, measurement, and theoretical perspectives. In L. A. Pervin & O. P. John (Eds.), Handbook of personality: Theory and research (Vol. 2, pp. 102–138). Guilford Press.
• Jones, D. N. (2009). The potential consequences of past sexual and emotional promiscuity: Preliminary findings. Unpublished manuscript, Department of Psychology, University of British Columbia.
• Jones, D. N. (2011). What does it mean to be emotionally promiscuous? Journal of Social and Personal Relationships, 28(8), 1056–1069. https://doi.org/10.1177/0265407510385458
• Jones, D. N., & Paulhus, D. L. (2009). Emotional promiscuity and its consequences for romantic relationships and infidelity. Manuscript in preparation, University of British Columbia.
• Manuel, S. (2005). Obstacles to condom use among secondary school students in Maputo City, Mozambique. Culture, Health & Sexuality, 7(3), 293–302. https://doi.org/10.1080/13691050412331321287
• Rosenthal, D., Gifford, S., & Moore, S. (1998). Safe sex or safe love: Competing discourses? AIDS Care, 10(1), 35–45. https://doi.org/10.1080/09540129850124589
• Simpson, J. A., & Gangestad, S. W. (1991). Individual differences in sociosexuality: Evidence for convergent and discriminant validity. Journal of Personality and Social Psychology, 60(6), 870–883. https://doi.org/10.1037/0022-3514.60.6.870
• Sprecher, S., & Metts, S. (1989). Development of the ‘Romantic Beliefs Scale’ and examination of the effects of gender and gender-role orientation. Journal of Social and Personal Relationships, 6(4), 387–411. https://doi.org/10.1177/026540758900600401

Items of the Scale