Personal Report of Communication Apprehension (PRCA-24)

1. Abstract

The Personal Report of Communication Apprehension (PRCA-24), formulated by James C. McCroskey in 1982, represents the premier, gold-standard psychometric instrument designed to evaluate trait-like communication apprehension (CA) across diverse communication contexts. Grounded within social cognitive, communicative, and cognitive-behavioral paradigms, communication apprehension is conceptualized as an individual’s level of fear or anxiety associated with either real or anticipated communication with another person or persons. The PRCA-24 refines earlier 20-item and 25-item iterations by McCroskey to establish a balanced, highly robust 24-item operationalization partitioned equally across four pervasive communication modalities: Group Discussions, Meetings, Interpersonal Conversations, and Public Speaking.

Administered via a 5-point Likert response scale ranging from 1 (Strongly Disagree) to 5 (Strongly Agree), each six-item subscale incorporates three positively keyed and three negatively keyed items, systematically neutralizing acquiescence response bias. Subscale scores are derived through linear transformation formulas yielding context-specific scores spanning 6 to 30, with composite scores ranging from 24 to 120. Extensive empirical investigations consistently confirm the exceptional psychometric properties of the instrument. The overall scale demonstrates exemplary internal consistency, typically yielding Cronbach’s alpha coefficients exceeding α = .90 (α = .92 to .96 across collegiate, clinical, and organizational populations), with each individual six-item subscale routinely reporting reliability coefficients between α = .80 and .92. Test-retest reliability over intervals spanning several weeks regularly demonstrates temporal stability exceeding r = .80.

Confirmatory factor analytic investigations have robustly authenticated a second-order factor structure, wherein four distinct first-order contextual dimensions load heavily onto an overarching, generalized trait-like communication apprehension construct. The PRCA-24 demonstrates exceptional construct, convergent, discriminant, and predictive validity, exhibiting strong positive correlations with state communication anxiety, generalized social anxiety, introversion, and neuroticism, while showing robust negative associations with willingness to communicate, self-esteem, self-perceived communication competence, and occupational advancement. As an extensively normed, publicly accessible psychometric tool, the PRCA-24 maintains profound utility across pedagogical diagnosis, speech pedagogy, occupational assessment, behavioral counseling, and communication science scholarship worldwide.

2. Keywords

Communication Apprehension, PRCA-24, James C. McCroskey, Public Speaking Anxiety, Interpersonal Communication, Social Anxiety, Psychometrics, Factor Structure, Communication Competence, Willingness to Communicate, Trait Anxiety, Group Discussion Anxiety

3. Authors

The Personal Report of Communication Apprehension was conceptualized, operationalized, and validated by Dr. James C. McCroskey (1938–2012), one of the most prolific and influential figures in the discipline of communication studies. McCroskey held distinguished professorships throughout his career, serving as Professor and Chair of the Department of Communication Studies at West Virginia University for over twenty-five years, and later joining the faculty at the University of Alabama at Birmingham. Over a distinguished academic career spanning more than four decades, McCroskey authored and co-authored over 30 books, dozens of book chapters, and more than 200 peer-reviewed journal articles focusing on instructional communication, rhetorical theory, interpersonal communication, and communication trait psychology.

In subsequent validation studies, McCroskey collaborated extensively with prominent communication scholars who contributed significantly to the contextual, cognitive, and physiological mapping of the PRCA-24, including:

• Dr. Michael J. Beatty — Professor Emeritus of Communication at the University of Miami, renowned for developing the communibiological paradigm in communication studies.
• Dr. Patricia Kearney — Professor Emerita of Communication Studies at California State University, Long Beach, specializing in instructional communication and student engagement.
• Dr. Timothy G. Plax — Professor Emeritus of Communication Studies at California State University, Long Beach, focusing on organizational communication, instructional influence, and empirical research design.

4. Purpose

The primary purpose of the PRCA-24 is to provide a theoretically grounded, psychometrically sound, and diagnostically practical measure of communication apprehension conceptualized as a generalized, trait-like disposition. Communication apprehension manifests across a spectrum ranging from mild situational jitteriness to debilitating, phobic avoidance of interpersonal interaction. McCroskey recognized that while public speaking anxiety (often colloquially termed glossophobia) received the preponderance of empirical attention, apprehension frequently infects smaller, informal, and collaborative communicative environments. Consequently, the PRCA-24 was engineered to isolate an individual’s overarching predisposition toward apprehension while providing granular diagnostic precision across four distinct, ecologically valid communicative environments: small group interactions, structured business or committee meetings, dyadic interpersonal conversations, and formal public presentations.

In clinical, educational, and pedagogical contexts, the PRCA-24 serves as an indispensable screening and diagnostic instrument. In secondary and higher education, speech-language pathologists, basic communication course directors, and student support services utilize the PRCA-24 to identify students at risk for academic underachievement, course avoidance, and withdrawal driven by severe social-communicative inhibition. Students exhibiting elevated scores can be systematically channeled into evidence-based interventions, such as systematic desensitization, cognitive restructuring, visualization, or specialized public speaking anxiety workshops. Because the PRCA-24 differentiates between contexts, educators can tailor interventions specifically to the student’s communicative deficits—for example, targeting dyadic socialization rather than broad rhetorical performance when interpersonal anxiety predominates.

In organizational and industrial settings, the instrument provides deep insight into human resource dynamics, team collaboration, leadership potential, and occupational stress. High levels of communication apprehension correlate with lower interview performance, reduced willingness to speak up in decision-making forums, reluctance to negotiate, and constrained occupational trajectories. Utilizing the PRCA-24 allows researchers and executive coaches to investigate how communicative anxiety influences employee turnover, workplace satisfaction, collaborative problem-solving, and managerial effectiveness.

Finally, in communication science and behavioral research, the PRCA-24 serves as a foundational baseline measure. Researchers across psychological and communicative disciplines routinely employ the instrument to control for baseline trait anxiety when testing instructional interventions, technological mediation (e.g., virtual reality public speaking simulations, computer-mediated communication), physiological correlates of stress (e.g., cortisol secretion, heart rate variability), and cross-cultural communication behaviors.

5. Psychological Construct

The core psychological construct measured by the PRCA-24 is Communication Apprehension (CA), formally defined by McCroskey as “an individual’s level of fear or anxiety associated with either real or anticipated communication with another person or persons.” This definition establishes that communication apprehension is fundamentally a cognitive and affective response that can occur in the absence of actual overt communication; the mere anticipation of an upcoming communicative event is sufficient to trigger systemic nervous arousal, cognitive disruption, and behavioral avoidance. McCroskey conceptualized CA along a continuum spanning four distinct manifestations:

• Trait-like CA: A relatively stable, personality-oriented predisposition to experience anxiety across a broad spectrum of communicative contexts.
• Generalized-Context CA: An apprehension triggered consistently within a specific type of communicative setting, regardless of the conversational partner or audience (e.g., being consistently comfortable in dyads but terrified of public speeches).
• Person-Group CA: Anxiety experienced when communicating with a specific individual or distinct group of individuals (e.g., speaking to an authority figure, a supervisor, or a teacher).
• Situational CA: State anxiety elicited by a transient combination of situational stressors, context, and receiver characteristics (e.g., delivering a critical legal defense before a hostile judge).

The PRCA-24 is explicitly designed to assess generalized trait-like communication apprehension by systematically sampling four primary generalized contexts, each operationalized through a designated six-item subscale:

Group Discussion (Items 1–6)

This dimension measures anxiety, apprehension, and avoidance experienced during informal, collaborative small-group interactions. Small groups typically involve multiple participants with fluid conversational turns, interdependent problem-solving, and decentralized social structures. Individuals with elevated group apprehension often experience feelings of intimidation, fear of being judged by peers, and discomfort when encountering unfamiliar group members. Operationally, this subscale captures both active enthusiasm (e.g., liking to get involved in group discussions) and acute emotional distress (e.g., feeling tense, nervous, or wishing to withdraw).

Meetings (Items 7–12)

The meeting context represents a more structured, formalized communicative environment than an informal group discussion. Meetings are characterized by explicit agendas, recognized leadership or chairpersons, institutional accountability, and designated protocols for participating. The items in this subscale measure fear of expressing opinions, anxiety when answering unexpected questions, and general psychological discomfort while participating under the evaluative scrutiny of colleagues and superiors.

Interpersonal Conversations (Items 13–18)

This subscale evaluates dyadic communication apprehension, capturing the degree of anxiety an individual experiences during one-on-one interactions. Dyadic communication represents the most fundamental communicative format. High dyadic apprehension manifests as a fear of speaking up, acute awkwardness, autonomic arousal when interacting with new acquaintances, and an overarching dread of sustained face-to-face dialogue. This construct shares substantial overlap with generalized social introversion and shyness, targeting fundamental relational vulnerability.

Public Speaking (Items 19–24)

Formal public speaking constitutes the most asymmetrical and historically feared communicative modality. Characterized by unidirectional discourse, distinct roles between speaker and audience, heightened social evaluation, and formal speech preparation, public speaking evokes pronounced psychological and physiological reactivity. Items in this subscale measure cognitive disruption (e.g., thoughts becoming jumbled, forgetting facts), somatic distress (e.g., body feeling rigid and tense), and anticipatory dread versus perceived rhetorical confidence.

6. Theoretical Framework

The PRCA-24 is underpinned by an integration of cognitive-behavioral theory, learning theory, and subsequently, the communibiological paradigm. When McCroskey developed the early iterations of the PRCA in the late 1960s and 1970s, prevailing models viewed communication apprehension through the lens of classical and operant conditioning. According to this behavioral perspective, individuals develop communication apprehension when early communicative attempts are met with punishment, harsh social judgment, ridicule, or inadequate positive reinforcement. Over time, communicative stimuli become conditioned stimuli triggering anticipatory anxiety and conditioned avoidance responses.

Concurrently, the theoretical model incorporates cognitive appraisal formulations akin to those articulated by Richard Lazarus and Aaron T. Beck. According to cognitive models of communication apprehension, the autonomic arousal experienced before or during communication is filtered through subjective cognitive appraisals. When an individual appraises the communicative environment as highly evaluative, ambiguous, novel, or consequential, and perceives their own communication competence as insufficient to meet these demands, apprehension inevitably surges. Cognitive manifestations include catastrophizing, hypervigilance toward audience disinterest, negative self-talk, and memory interference (operationalized in Item 22: “My thoughts become confused and jumbled when I am giving a speech”).

In the late 1990s and 2000s, McCroskey, in partnership with Michael J. Beatty, Ralph R. Behnke, and Alan D. Heisel, expanded the theoretical framework into the communibiological paradigm. This paradigm posited that communication apprehension is primarily an expression of genetically based, neurobiological temperaments rather than purely learned social behaviors. Drawing on Jeffrey Gray’s neuropsychological model of personality, the communibiological model asserts that trait communication apprehension is rooted in individual differences in the sensitivity and reactivity of two core brain systems:

• The Behavioral Inhibition System (BIS): Regulated primarily by the septo-hippocampal system and amygdala, the BIS mediates responsiveness to conditioned punishment, novelty, and innate fear stimuli. Hyperactivity within the BIS results in physiological arousal, hypervigilance, and behavioral freezing—the biological hallmarks of high communication apprehension.
• The Behavioral Activation System (BAS): Regulated by dopaminergic pathways, the BAS governs sensitivity to reward and appetitive motivation. Individuals with elevated CA typically display an overactive BIS coupled with a relatively subdued BAS, producing high avoidance tendencies in communicative settings.

The PRCA-24 bridges these theoretical perspectives by acknowledging that while neurobiological architecture provides the underlying predisposition for trait anxiety, this disposition manifests through cognitive appraisals and behavioral outcomes within culturally defined communicative formats (groups, meetings, dyads, and public speeches).

7. Validity

The psychometric validity of the PRCA-24 has been subjected to extensive empirical verification across diverse academic, professional, and cross-cultural samples over four decades.

Construct and Factorial Validity

Construct validity is evidenced by the scale’s robust four-factor structure corresponding exactly to the four theoretical modalities. In McCroskey, Beatty, Kearney, and Plax’s (1985) definitive content and construct validation study, the four contextual subscales emerged cleanly through factor analysis, demonstrating that communication apprehension is neither a monolithic unidimensional construct nor a collection of completely unrelated anxieties, but rather a unified higher-order construct manifested through related contextual dimensions. Subsequent structural equation modeling has confirmed that each of the 24 items exhibits high standardized factor loadings (> .60) on its intended factor without problematic cross-loadings.

Convergent Validity

The PRCA-24 demonstrates strong convergent validity through statistically significant correlations with closely aligned psychological and communicative instruments:

• Social Anxiety: Yields robust positive correlations (r = .50 to .72) with instruments measuring generalized social anxiety, such as the Liebowitz Social Anxiety Scale (LSAS) and the Social Interaction Anxiety Scale (SIAS).
• State Communication Anxiety: Highly correlates with state measures such as the State Anxiety subscale of the Spielberger State-Trait Anxiety Inventory (STAI) and the Personal Report of State Apprehension (PRSA) following live communication tasks (r = .45 to .65).
• Neuroticism / Negative Affectivity: Correlates positively (r = .35 to .50) with Neuroticism on the Eysenck Personality Questionnaire (EPQ) and the NEO Personality Inventory (NEO-PI-R).
• Reticence and Shyness: Correlates strongly with the McCroskey Shyness Scale (r = .60 to .75).

Discriminant Validity

Discriminant validity is well-established by demonstrating that the PRCA-24 is distinct from cognitive ability, general intelligence, and unrelated personality traits:

• Cognitive Intelligence: The PRCA-24 correlates near zero with standardized measures of cognitive ability, ACT/SAT scores, and GPA (r typically between -.05 and .08), proving that CA is not an artifact of intellectual competence.
• Self-Perceived Competence vs. Actual Competence: While the PRCA-24 demonstrates moderate-to-strong negative correlations with self-perceived communication competence (SPCC; r = -.55 to -.70), its correlations with objective, third-party ratings of communication performance are modest (r = -.20 to -.35), underscoring that the instrument measures internal subjective apprehension rather than objective mechanical skill.

Predictive and Criterion Validity

The PRCA-24 exhibits remarkable predictive validity across diverse behavioral criteria:

• Academic Settings: Predicts seat selection in classrooms (high-CA individuals systematically choose seats on the periphery or back rows), frequency of voluntary classroom participation, likelihood of dropping public speaking classes, and avoidance of communication-intensive college majors.
• Occupational Outcomes: Scores predict job applicant interview performance, avoidance of positions requiring intensive interpersonal collaboration, reluctance to seek leadership roles, and lower occupational mobility.
• Physiological Reactivity: Beatty and colleagues demonstrated that individuals scoring high on the PRCA-24 Public Speaking subscale exhibit significantly elevated galvanic skin response (GSR), salivary cortisol elevations, and accelerated heart rate during the anticipation and execution of public speaking tasks compared to low-CA individuals.

8. Reliability

The PRCA-24 is renowned within psychometric literature for displaying exceptionally high internal consistency and temporal stability across broad, heterogeneous demographic cohorts.

Internal Consistency

Across hundreds of empirical studies spanning collegiate, adult, and cross-cultural populations, the composite 24-item scale consistently yields a Cronbach’s alpha coefficient between α = .92 and .96. This reflects an extraordinary degree of internal cohesion and low measurement error. Furthermore, each of the four 6-item contextual subscales independently demonstrates exemplary internal consistency:

• Group Discussion Subscale: Cronbach’s α typically ranges from .82 to .89.
• Meetings Subscale: Cronbach’s α typically ranges from .84 to .91.
• Interpersonal Conversations Subscale: Cronbach’s α typically ranges from .81 to .87.
• Public Speaking Subscale: Cronbach’s α typically ranges from .86 to .92.

The inclusion of three positively keyed and three negatively keyed items per subscale eliminates acquiescence and straight-lining response patterns without degrading the scale’s high inter-item correlations (average inter-item correlations typically fall between .45 and .65).

Test-Retest Reliability (Temporal Stability)

Because the PRCA-24 is conceptualized as a measure of trait-like communication apprehension, stability across time is a critical psychometric prerequisite. Longitudinal and test-retest evaluations demonstrate strong temporal stability:

• Over a two-to-three-week test-retest window in non-intervention control groups, stability coefficients routinely fall between r = .83 and .88.
• Over extended intervals of twelve to sixteen weeks (e.g., across an academic semester without targeted communication apprehension interventions), test-retest coefficients remain robust, ranging from r = .75 to .82.

Importantly, when individuals participate in targeted clinical or pedagogical interventions—such as systematic desensitization, cognitive modification, or performance training—PRCA-24 scores demonstrate statistically significant, substantial reductions, confirming the instrument’s sensitivity to genuine therapeutic change while preserving test-retest stability in untreated cohorts.

9. Factor Analysis

The underlying dimensionality of the PRCA-24 has been rigorously examined using both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) methodologies.

Exploratory Factor Analysis (EFA)

During the developmental and refinement phases led by McCroskey and colleagues (1985), principal components analysis with varimax and oblimin rotations consistently extracted four distinct factors corresponding exactly to the four theoretical modalities: Group Discussions, Meetings, Interpersonal Conversations, and Public Speaking. Across analyses:

• The four factors collectively account for 60% to 70% of the total variance.
• All 24 items load cleanly on their intended context factor with primary standardized factor loadings regularly exceeding .60 (and many exceeding .75).
• Cross-loadings on non-target factors remain negligible, rarely exceeding .25.

Confirmatory Factor Analysis (CFA)

Contemporary psychometric evaluations employing CFA have compared competing structural models:

• Unidimensional Model: A single global factor onto which all 24 items load directly. This model consistently demonstrates poor fit (e.g., χ²/df > 6.0, RMSEA > .10, CFI < .80), indicating that communication apprehension cannot be conceptualized as an undifferentiated monolithic construct.
• Four-Factor Orthogonal Model: Assumes four completely unrelated contexts. This model also fails to fit empirical data, as subscales exhibit moderate to strong inter-correlations (r = .45 to .65).
• Four-Factor Correlated Model: Demonstrates excellent fit to empirical data, reflecting context-specific variances while accommodating substantial covariance across communication settings.
• Second-Order Hierarchical Model: Features four first-order contextual latent factors (Group, Meetings, Interpersonal, Public Speaking) loading onto a single higher-order latent construct representing global Trait Communication Apprehension. This theoretical model provides an exceptional, parsimonious fit to the data across diverse populations.

Representative CFA fit indices reported in literature for the second-order model regularly satisfy contemporary criteria for superior model fit:

• Comparative Fit Index (CFI): .94 – .98
• Tucker-Lewis Index (TLI): .93 – .97
• Root Mean Square Error of Approximation (RMSEA): .042 – .058 (with 90% confidence intervals well within acceptable limits)
• Standardized Root Mean Square Residual (SRMR): .035 – .048

These findings conclusively support both the calculation of individual context subscale scores and the aggregation of all 24 items into an overarching composite trait score.

10. Instrument / Measurement Tool

• Instrument Name: Personal Report of Communication Apprehension (PRCA-24)
• Author: James C. McCroskey (1982)
• Construct Measured: Trait-like and generalized-context communication apprehension
• Format: 24 self-report items
• Subscales / Dimensions:
  • Group Discussion: Items 1, 2, 3, 4, 5, 6
  • Meetings: Items 7, 8, 9, 10, 11, 12
  • Interpersonal: Items 13, 14, 15, 16, 17, 18
  • Public Speaking: Items 19, 20, 21, 22, 23, 24
• Response Scale: 5-point Likert scale:
  • 1 = Strongly Disagree
  • 2 = Disagree
  • 3 = are Neutral
  • 4 = Agree
  • 5 = Strongly Agree
• Scoring Rules: Each subscale incorporates three positively keyed and three negatively keyed items. Context scores range from 6 to 30:
  • Group Discussion Subscale: 18 − (scores for items 2, 4, & 6) + (scores for items 1, 3, & 5)
  • Meetings Subscale: 18 − (scores for items 8, 9, & 12) + (scores for items 7, 10, & 11)
  • Interpersonal Subscale: 18 − (scores for items 14, 16, & 17) + (scores for items 13, 15, & 18)
  • Public Speaking Subscale: 18 − (scores for items 19, 21, & 23) + (scores for items 20, 22, & 24)
  • Total PRCA-24 Trait Score: Sum of the four subscale scores (Total = Group + Meetings + Interpersonal + Public Speaking), yielding a total possible range from 24 to 120.
• Interpretation Cut-Offs:
  • Total Score Range: 24 – 120
  • Scores below 51 (or 24 – 55): Low level of communication apprehension. Individuals with low scores experience minimal anxiety and are generally comfortable communicating across multiple environments.
  • Scores between 51 – 80 (or 55 – 83): Average / Moderate level of communication apprehension. Individuals experience typical levels of apprehension depending on situational dynamics.
  • Scores above 80 (or 83 – 120): High level of trait communication apprehension. Individuals experience significant, pervasive apprehension and fear across communication contexts, often warranting instructional or behavioral intervention.
  • Subscale Cut-Offs (Scores 6 – 30): Scores above 18 indicate high apprehension in that specific context; scores between 12 and 18 represent moderate apprehension; scores below 12 indicate low apprehension.

11. Permissions & Fee and Test Year

The Personal Report of Communication Apprehension (PRCA-24) was officially published by James C. McCroskey in 1982 in the fourth edition of his seminal textbook, An Introduction to Rhetorical Communication (Prentice-Hall). Throughout his life, Dr. McCroskey operated with a passionate commitment to advancing open communication science and pedagogical accessibility. Consequently, he placed the PRCA-24 and its companion scales into the public educational domain for non-commercial research, academic, and clinical use.

Researchers, educators, psychologists, and clinicians are free to use, reproduce, administer, and translate the PRCA-24 without payment of royalties, licensing fees, or prior written permission, provided that:

• The instrument is utilized exclusively for educational, scholarly, diagnostic, or research purposes.
• Appropriate academic credit and bibliographic citation are accorded to Dr. James C. McCroskey and the foundational validation studies.
• The items and balanced scoring formulas are preserved to maintain psychometric validity.

Commercial reproduction for sale or inclusion within proprietary corporate testing platforms requires formal inquiry and licensing through the copyright holders and the estate of James C. McCroskey. Archival information and original measurement documentation remain accessible via the academic repository maintained in his honor at http://www.jamescmccroskey.com/measures/prca24.htm.

12. References

Beatty, M. J., & McCroskey, J. C. (1997). It’s in our biology: A communibiological approach to communication apprehension. Communication Education, 46(4), 221–233. https://doi.org/10.1080/03634529709379097

Beatty, M. J., McCroskey, J. C., & Heisel, A. D. (1998). Communication apprehension as temperamental expression: A communibiological paradigm. Communication Monographs, 65(3), 197–219. https://doi.org/10.1080/03637759809376448

Bodie, G. D. (2010). A racing heart, rattling knees, and ruminative thoughts: Defining, explaining, and treating public speaking anxiety. Communication Education, 59(1), 70–105. https://doi.org/10.1080/03634520903443849

McCroskey, J. C. (1970). Measures of communication-bound anxiety. Speech Monographs, 37(4), 269–277. https://doi.org/10.1080/03637757009375677

McCroskey, J. C. (1977). Oral communication apprehension: A summary of recent theory and research. Human Communication Research, 4(1), 78–96. https://doi.org/10.1111/j.1468-2958.1977.tb00599.x

McCroskey, J. C. (1982). An introduction to rhetorical communication (4th ed.). Prentice-Hall.

McCroskey, J. C., & Beatty, M. J. (1984). Communication apprehension and accumulated communication state anxiety experiences: A research note. Communication Monographs, 51(1), 79–84. https://doi.org/10.1080/03637758409390184

McCroskey, J. C., Beatty, M. J., Kearney, P., & Plax, T. G. (1985). The content validity of the PRCA-24 as a measure of communication apprehension across communication contexts. Communication Quarterly, 33(3), 165–173. https://doi.org/10.1080/01463378509369595

McCroskey, J. C., & Richmond, V. P. (1998). Willingness to communicate, communication apprehension, and self-perceived communication competence: Conceptualizations and instruments. In J. C. McCroskey, J. A. Daly, K. E. Martin, & M. J. Beatty (Eds.), Avoiding communication: Shyness, reticence, and communication apprehension (2nd ed., pp. 119–132). Hampton Press.

13. Items of the Scale