1. Abstract
The Maternal Attitude to Pregnancy Instrument (MAPI) is an early, pioneering psychometric assessment developed by psychiatrist Abram Blau, clinical psychologist Joan Welkowitz, and quantitative methodologist Jacob Cohen in 1964. Designed during an era marked by the convergence of psychoanalytic theory and psychosomatic obstetrics, the MAPI was constructed to operationalize and quantify maternal emotional attitudes, ambivalence, somatic distress, and psychological preparedness during gestation, with the primary objective of predicting psychogenic obstetrical complications, most notably preterm birth and prolonged labor. The instrument comprises 48 self-report items evaluated on a 4-point Likert scale ranging from 1 (Strongly Agree) to 4 (Strongly Disagree). Factor-analytic investigations of the instrument identified four salient dimensions: (I) Feelings of Well-Being versus Anxiety and Somatic Complaints, (II) Pride and Acceptance of Pregnancy versus Rejection and Fear, (III) Attitudes Toward Labor and Delivery, and (IV) Attitudes Toward Breastfeeding and Infant Care.
Psychometrically, the MAPI demonstrated substantial internal consistency in its normative sample of middle-class postpartum women (Cronbach’s alpha = .80, N = 145); however, it exhibited a pronounced attenuation of reliability when administered to socioeconomically disadvantaged clinic populations (α = .33, N = 78), highlighting critical historical challenges in measurement invariance, reading comprehension, and cross-cultural psychometrics. Despite historical shifts away from purely psychogenic models of obstetrical morbidity, the MAPI remains a seminal historical instrument in perinatal psychology, serving as an intellectual precursor to contemporary measures of pregnancy-related anxiety, maternal-fetal attachment, and perinatal mood disorders.
2. Keywords
Maternal Attitude to Pregnancy Instrument, MAPI, pregnancy-specific anxiety, psychosomatic obstetrics, preterm delivery, maternal ambivalence, psychometrics, Jacob Cohen, prenatal psychology, perinatal mental health
3. Authors
The Maternal Attitude to Pregnancy Instrument was formulated and validated through an interdisciplinary collaboration between the Department of Psychiatry at The Mount Sinai Hospital and the Department of Psychology at New York University:
- Abram Blau, M.D.: Attending Psychiatrist and Director of the Child Psychiatry Division, Department of Psychiatry, The Mount Sinai Hospital, New York, NY. Dr. Blau specialized in psychosomatic medicine, psychoanalysis, and the psychiatric dimensions of obstetrical and pediatric conditions.
- Joan Welkowitz, Ph.D.: Clinical Psychologist and Research Associate, Department of Psychology, New York University, New York, NY. Dr. Welkowitz was renowned for her work on dyadic interaction, nonverbal communication, and psychometric assessment development.
- Jacob Cohen, Ph.D.: Professor of Psychology and Quantitative Methods, Department of Psychology, New York University, New York, NY. Dr. Cohen was a towering figure in behavioral statistics, famed for developing statistical power analysis, partial correlation methodologies, and foundational effect size metrics (e.g., Cohen’s d).
4. Purpose
The primary clinical and empirical purpose of the Maternal Attitude to Pregnancy Instrument (MAPI) was to test the hypothesis that maternal psychological conflicts, covert rejection of the maternal role, and severe prenatal anxiety function as etiological agents in precipitating obstetrical complications, specifically premature rupture of membranes and idiopathic spontaneous preterm labor. In the mid-twentieth century, obstetricians and liaison psychiatrists recognized that a significant proportion of premature deliveries occurred in the absence of identifiable physiological, anatomical, or infectious etiologies. Consequently, researchers posited that psychogenic factors mediated through the autonomic nervous system and neuroendocrine pathways might trigger premature uterine contractions.
To systematically investigate this hypothesis, Blau and colleagues sought to transcend qualitative, post-hoc clinical interviews, which were heavily vulnerable to recall bias and subjective diagnostic interpretation. The MAPI was constructed as an objective, standardized psychometric rating scale capable of capturing conscious and preconscious attitudes toward the gestating fetus, the physical transformation of the maternal body, the anticipation of labor, and the prospective responsibilities of neonatal care. By administering the scale, researchers aimed to establish empirical profiles that differentiated women who carried pregnancies to term from those who suffered preterm deliveries or protracted, dysfunctional labor.
Beyond its initial focus on psychogenic prematurity, the MAPI was applied as an investigative tool in psychosomatic obstetrics and gynecological psychiatry to:
- Screen for covert maternal ambivalence, acute pregnancy-related anxiety, and prenatal depressive symptomatology during routine antenatal consultations.
- Quantify the psychological impact of severe somatic symptoms (e.g., hyperemesis gravidarum, chronic fatigue, musculoskeletal pain) and examine their relationship with maternal emotional stability.
- Evaluate prospective readiness for lactation and infant feeding, allowing healthcare providers to identify mothers at risk for feeding difficulties or postpartum maladjustment.
- Serve as a research metric in comparative studies assessing how demographic variables, socioeconomic position, and marital cohesion modulate psychological adaptation to pregnancy.
5. Psychological Construct
The psychological construct evaluated by the MAPI is multidimensional maternal attitude toward pregnancy, conceptualized as a constellation of affective, cognitive, and somatic orientations toward gestation, the physical self, the unborn infant, and the impending maternal role. Rather than treating pregnancy solely as a biological event, the construct views it as a profound developmental crisis requiring extensive psychological reorganization. The MAPI captures four core dimensions underlying this broad construct:
Factor I: Feelings of Well-Being versus Anxiety and Somatic Complaints
This dimension reflects the maternal experience of physiological vitality and emotional stability as opposed to pervasive tension, affective lability, and debilitating somatic manifestations. Items mapping onto this factor evaluate the degree to which physical changes are experienced either as a natural state of vigor (e.g., “I have never felt healthier than during this pregnancy”) or as overwhelming somatic pathology characterized by nausea, profound fatigue, and generalized aches (e.g., “The physical discomforts of pregnancy have been almost unbearable”). Emotionally, this factor taps generalized anxiety, unprovoked irritability, and depressive dysphoria, representing the general distress component of antenatal adaptation.
Factor II: Pride and Acceptance of Pregnancy versus Rejection and Fear
This subconstruct operationalizes the mother’s narcissistic investment in pregnancy and the psychological resolution of ambivalence. Positive poles reflect a celebratory identification with the female reproductive role, marital solidarity, and genuine fulfillment (e.g., “I am very proud to be pregnant”; “Being pregnant gives me a deep sense of fulfillment”). Conversely, the negative pole encapsulates profound psychological resistance, conscious or semi-conscious rejection of the gestational state, resentment regarding loss of autonomy, and alienation from bodily changes (e.g., “I feel that pregnancy is a burden rather than a joy”; “I often regret that I became pregnant at this time”). It also probes fears regarding fetal integrity and anomalies (e.g., “I fear that the baby will not be physically complete and healthy”).
Factor III: Attitudes Toward Labor and Delivery
Factor III isolates focalized fear and anticipatory anxiety regarding parturition. Childbirth represents an acute physical stressor characterized by pain, vulnerability, and potential mortality. This dimension measures the continuum between cognitive readiness, trust in medical caregivers, and inner tranquility versus catastrophic fear, dread of physical agony, and terror of medical catastrophe (e.g., “The thought of labor and delivery terrifies me”; “I dread the actual pain of childbirth”; versus “I feel calm and relaxed about the coming birth”). Elevated scores on the maladaptive pole reflect what contemporary obstetrics classifies as tokophobia.
Factor IV: Attitudes Toward Breastfeeding and Infant Care
The fourth dimension captures maternal orientation toward direct nurturance and neonatal dependency. Rooted in psychoanalytic formulations of oral-stage maternal gratification, this subconstruct assesses attitudes toward lactation as an instinctive, emotionally rewarding process versus a burdensome, restrictive, or repulsive obligation (e.g., “Breastfeeding is the most natural and satisfying way to feed an infant”; versus “I prefer bottle feeding over breastfeeding”). Furthermore, it evaluates the mother’s prospective sense of parental competence, patience, and warmth when anticipating the routine physical and emotional demands of the newborn (e.g., “I worry about whether I will have enough patience to care for an infant”).
6. Theoretical Framework
The construction of the MAPI was theoretically grounded in mid-twentieth-century psychosomatic medicine and psychoanalytic formulations of female psychosexual development, pioneered by theorists such as Helene Deutsch (1945) and Therese Benedek (1959). Within this psychoanalytic paradigm, pregnancy is conceptualized as a normative developmental crisis—a biologic and psychological transition that reactivates earlier conflicts regarding maternal identification, infantile dependency, and bodily integrity.
Deutsch posited that a woman’s psychological equilibrium during pregnancy depends on her capacity to achieve an inward-directed emotional state (“introversion of pregnancy”) and successfully balance two competing emotional drives: narcissistic self-preservation and maternal devotion to the developing fetus. When underlying conflicts, unconquered hostility toward the woman’s own mother, or unconscious rejection of the feminine identity remain unresolved, psychological distress is thought to somaticize. Rather than experiencing the gestational period as a state of fulfillment, the expectant mother experiences unmanageable anxiety, intense somatic distress, and pervasive ambivalence.
From an obstetrical psychosomatic perspective, Blau, Welkowitz, and Cohen (1964) integrated these dynamic psychoanalytic premises with neuroendocrine stress models. They posited that chronic emotional tension, covert hostility, and acute tokophobia stimulate the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system. Excessive systemic release of catecholamines (epinephrine and norepinephrine) and adrenal corticosteroids was hypothesized to induce:
- Uteroplacental vasoconstriction, leading to compromised fetal perfusion and subclinical hypoxia.
- Premature irritability of the myometrium, triggering hyperactive uterine contractility and cervical effacement before fetal maturation.
- Disruption of coordinated myometrial contractions during labor, culminating in primary uterine inertia, prolonged labor, or emergent dystocia.
Consequently, the MAPI was designed as an operational bridge between psychodynamic concepts of maternal conflict and observable obstetrical endpoints, reflecting an era when quantitative psychologists and clinical psychiatrists sought to bring rigorous statistical psychometrics to bear upon psychosomatic hypotheses.
7. Validity
Empirical validation of the MAPI encompassed investigations of construct, predictive, and discriminant validity across diverse clinical and non-clinical cohorts, yielding complex and instructive findings:
Construct and Discriminant Validity
Construct validity was initially examined by comparing the factor structure of the 48-item scale against clinical behavioral assessments and psychiatric interview ratings. The emergence of four logically distinct and theoretically concordant factors supported the construct validity of maternal attitudes as a multifaceted phenomenon encompassing somatic, emotional, relational, and caregiving domains. In validation cohorts comprising married, middle-class primiparous and multiparous women, the instrument demonstrated robust discriminant validity, differentiating between individuals with healthy psychological adaptation and those exhibiting elevated general neuroticism, marked hypochondriacal tendencies, or severe marital distress.
Predictive Validity for Obstetrical Complications
The primary predictive hypothesis—that elevated maternal anxiety, somatic complaints, and rejection of pregnancy (low MAPI adjustment scores) would systematically predict spontaneous premature delivery—yielded mixed and historically nuanced results. In their retrospective comparisons between mothers of full-term infants and mothers of premature infants, Blau et al. (1964) observed significant group differences on specific MAPI dimensions. Mothers of premature infants demonstrated significantly higher frequencies of self-reported negative attitudes toward pregnancy, heightened fears regarding fetal normality, and elevated dread of labor pain. However, when prospective designs were instituted, the predictive power of the MAPI attenuated. While the instrument reliably predicted subjective postpartum adjustment, subjective birth trauma, and infant feeding modalities, its capacity to independently predict premature birth was confounded by biological, obstetrical, and socioeconomic variables, casting doubt on a purely psychogenic etiology of prematurity.
Cross-Cultural and Socioeconomic Validity Discrepancies
A critical psychometric finding arose when the MAPI was translated into Spanish and administered to low-socioeconomic-status (SES) clinic patients. In this group, the construct validity of several subscales eroded substantially. Items measuring subtle psychological ambivalence or philosophical attitudes toward motherhood failed to cluster cohesively, as immediate economic adversity, nutritional status, and access to prenatal care overshadowed nuanced psychodynamic attitudes. This historical discrepancy provided foundational evidence in psychometrics that attitude scales developed in educated, middle-class contexts cannot be assumed to possess construct or functional equivalence in populations experiencing systemic socioeconomic disadvantage.
8. Reliability
The internal consistency of the MAPI was evaluated across contrasting demographic samples using Cronbach’s alpha and split-half reliability methodologies, illustrating stark psychometric divergence based on sample characteristics:
Normative Middle-Class Cohort
In the primary validation sample of 145 middle-class postpartum American women, the MAPI demonstrated high internal consistency across the full 48-item scale:
- Total Scale Internal Consistency: Cronbach’s α = .80
- Factor I (Well-Being vs. Anxiety/Somatic Complaints): α = .78
- Factor II (Pride/Acceptance vs. Rejection/Fear): α = .74
- Factor III (Attitudes Toward Labor and Delivery): α = .71
- Factor IV (Attitudes Toward Breastfeeding/Care): α = .68
Split-half reliability coefficients (Spearman-Brown corrected) for the middle-class cohort ranged between .77 and .82, confirming that for homogeneous, literate, middle-class populations, the instrument offered stable and cohesive measurement of maternal attitudes.
Low Socioeconomic Clinic Cohort
In sharp contrast, when the instrument was administered to a sample of 78 low-socioeconomic-status clinic women (including both the American English version and the Spanish translation), the reliability collapsed:
- Total Scale Internal Consistency: Cronbach’s α = .33
This striking drop in reliability (α = .33) was extensively analyzed by Jacob Cohen and colleagues. They attributed this psychometric failure to multiple intersecting factors: reading comprehension difficulties, cultural divergence regarding the acceptability of expressing negative maternal emotions, semantic ambiguity of reverse-worded items among individuals with lower formal education, and the confounding influence of acute life stressors that destabilized test-item response patterns. This finding remains an iconic case study in classical test theory regarding the fragility of internal consistency across divergent sociodemographic strata.
9. Factor Analysis
The factor structure of the MAPI was established utilizing classical exploratory factor analysis (EFA) under the direction of Jacob Cohen, employing principal axis extraction followed by orthogonal (Varimax) rotation. Factor analysis was conducted independently on the American cohort and the Spanish-language clinic cohort to examine structural stability.
Four-Factor Solution
The EFA yielded four primary factors that accounted for the major portion of common variance among the 48 items:
- Factor I: Feelings of Well-Being vs. Anxiety/Somatic Complaints
Variance Explained: ~18.4%
Salient Item Loadings: High positive loadings were observed for items reflecting vitality and emotional equanimity (Item 1: .64; Item 9: .68; Item 34: .58; Item 37: .61). High negative loadings emerged for severe somatic distress and pervasive dysphoria (Item 4: -.59; Item 6: -.54; Item 12: -.62; Item 19: -.51; Item 25: -.48; Item 46: -.65). - Factor II: Pride and Acceptance of Pregnancy vs. Rejection/Fear
Variance Explained: ~12.7%
Salient Item Loadings: Defined by strong loadings on items expressing gestational pride, marital harmony, and fulfillment (Item 3: .52; Item 5: .71; Item 20: .55; Item 26: .59; Item 28: .66; Item 39: .57). Items tapping overt rejection, loss of autonomy, or fear of fetal malformation loaded negatively (Item 8: -.63; Item 14: -.58; Item 23: -.67; Item 29: -.47; Item 40: -.53). - Factor III: Attitudes Toward Labor and Delivery
Variance Explained: ~8.9%
Salient Item Loadings: Marked by items reflecting preparation and calm regarding birth (Item 7: .53; Item 15: .64; Item 30: .49; Item 43: .62) contrasted with items assessing acute terror, dread of physical pain, and catastrophic delivery expectations (Item 10: -.70; Item 17: -.58; Item 21: -.69; Item 35: -.72). - Factor IV: Attitudes Toward Breastfeeding and Infant Care
Variance Explained: ~6.5%
Salient Item Loadings: Substantial loadings clustered on infant feeding preference and immediate maternal nurturing (Item 11: .73; Item 18: .51; Item 24: .78; Item 32: .56; Item 47: .48), with reverse loadings for bottle feeding preference and parental anxiety (Item 36: -.75; Item 45: -.46).
While the four-factor orthogonal framework remained relatively stable across middle-class respondents, the factor matrix degenerated into fragmented, uninterpretable minor components when fitted to the low-SES clinic dataset, substantiating the unreliability observed in Cronbach’s alpha analysis.
10. Instrument / Measurement Tool
- Full Instrument Name: Maternal Attitude to Pregnancy Instrument (MAPI)
- Authors: Abram Blau, M.D., Joan Welkowitz, Ph.D., and Jacob Cohen, Ph.D.
- Year of Development: 1964
- Construct Assessed: Multidimensional maternal attitudes toward pregnancy, childbirth, somatic symptoms, and early infant feeding.
- Administration Format: Self-administered paper-and-pencil questionnaire.
- Target Population: Adult pregnant women (antepartum) or recently delivered mothers (postpartum retrospective administration); ages 18 years and older.
- Completion Time: Approximately 15 to 20 minutes.
- Number of Items: 48 items.
- Response Scale: 4-point Likert scale:
- 1 = Strongly Agree
- 2 = Agree
- 3 = Disagree
- 4 = Strongly Disagree
- Scoring and Directionality:
- Depending on the researcher’s scoring schema, items may be scored either toward Positive Maternal Adaptation or toward Maternal Psychological Distress / Negativity.
- Under the standard positive adjustment scoring convention (where higher scores reflect greater emotional well-being and acceptance), positively worded items (e.g., Items 1, 3, 5, 7, 9, 11, 13, 15, 18, 20, 22, 24, 26, 28, 30, 32, 34, 37, 39, 41, 43, 44, 47) are assigned: Strongly Agree = 4, Agree = 3, Disagree = 2, Strongly Disagree = 1.
- Negatively worded items assessing distress, dread, sickness, or rejection (e.g., Items 2, 4, 6, 8, 10, 12, 14, 16, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 36, 38, 40, 42, 45, 46, 48) are reverse-scored: Strongly Agree = 1, Agree = 2, Disagree = 3, Strongly Disagree = 4.
- Under the alternative distress convention (used in original psychosomatic morbidity studies), reverse coding is inverted so that higher total scores reflect elevated psychogenic obstetrical risk and psychological maladaptation.
- Available Language Versions: English and Spanish.
11. Permissions & Fee and Test Year
The Maternal Attitude to Pregnancy Instrument was published in 1964 in the Archives of General Psychiatry (now JAMA Psychiatry), published by the American Medical Association (AMA). The instrument was placed in the academic public domain for scientific and clinical inquiry, and no commercial licensing fees are associated with its non-profit empirical use. Researchers seeking to reproduce the instrument in formal clinical trials or diagnostic handbooks should respect standard academic fair use provisions and attribute original authorship to Blau, Welkowitz, and Cohen (1964). Given the historical nature of the test, neither the original authors nor an active commercial psychometric distributor maintains automated scoring portals or copyrighted proprietary assessment kits.
12. References
- Benedek, T. (1959). Parenthood as a developmental phase: A contribution to the libido theory. Journal of the American Psychoanalytic Association, 7(3), 389–417. https://doi.org/10.1177/000306515900700301
- Blau, A., Slaff, B., Easton, K., Welkowitz, J., Springarn, J., & Cohen, J. (1963). The psychogenic etiology of premature births: A preliminary report. Psychosomatic Medicine, 25(3), 201–211. https://doi.org/10.1097/00006842-196305000-00001
- Blau, A., Welkowitz, J., & Cohen, J. (1964). Maternal attitude to pregnancy instrument. Archives of General Psychiatry, 10(4), 324–331. https://doi.org/10.1001/archpsyc.1964.01720220002002
- Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Lawrence Erlbaum Associates.
- Deutsch, H. (1945). The psychology of women: A psychoanalytic interpretation (Vol. 2: Motherhood). Grune & Stratton.
- Lobel, M. (1994). Conceptualizations, measurement, and effects of prenatal maternal stress on birth outcomes. Journal of Behavioral Medicine, 17(3), 225–252. https://doi.org/10.1007/BF01857952
- Welkowitz, J., Cohen, J., & Ortmeyer, D. (1967). Value systems among maternal groups and their relationship to premature delivery. Journal of Clinical Psychology, 23(1), 58–62. https://doi.org/10.1002/1097-4679(196701)23:1<58::AID-JCLP2270230116>3.0.CO;2-J