Description

The PROPS is a parent-report questionnaire that measures the presence and severity of PTSD symptoms in children. It focuses on common post-traumatic symptoms across three domains that align with the DSM-IV criteria for PTSD:

Re-experiencing the trauma (e.g., intrusive thoughts or flashbacks)

Avoidance and numbing (e.g., avoiding reminders of the trauma, emotional numbing)

Increased arousal (e.g., hypervigilance, difficulty sleeping)

The questionnaire typically consists of multiple items where parents are asked to rate how often their child displays certain behaviors or symptoms over a recent period, usually on a Likert-type scale. It helps clinicians and researchers understand how a child is coping post-trauma from the parents’ perspective.

Data Analysis

Data from the PROPS can be analyzed both qualitatively and quantitatively. Quantitative analysis often involves scoring the individual items and summing them to get a total PTSD symptom severity score, as well as subscale scores for the re-experiencing, avoidance, and arousal domains. Higher scores suggest more severe PTSD symptoms.

Some common approaches to analyzing PROPS data include:

Descriptive statistics: To summarize the data and understand the general symptom levels across the population.

Factor analysis: To validate the underlying structure of the questionnaire and confirm whether it reliably measures the three PTSD domains.

Reliability testing: Using Cronbach’s alpha to assess the internal consistency of the items within the questionnaire.

Correlational analysis: To examine relationships between PROPS scores and other psychological measures, such as depression or anxiety inventories.

Use of PROPS Data

Clinical Use: PROPS can be used in clinical practice to guide diagnosis, track symptom progression, and help in treatment planning. By identifying specific areas where a child may struggle (e.g., high scores in re-experiencing), therapists can tailor interventions to address those areas.

Research Use: In research, PROPS data can help in studying the effects of trauma in children, the development of PTSD, and the effectiveness of interventions. Researchers can also use PROPS to compare PTSD symptoms across different demographic groups or to examine how trauma exposure (e.g., natural disasters, abuse) influences psychological outcomes.

Objective

The primary objective of the PROPS tool is to accurately assess PTSD symptoms from the perspective of a parent or caregiver. This provides critical information that might not always be observed in clinical settings or reported by the child. It serves as a complementary method to child self-report measures and clinician-administered interviews, offering a well-rounded understanding of the child’s post-traumatic experience.

Calibration

PROPS requires calibration through rigorous psychometric testing to ensure that the questionnaire accurately measures the intended PTSD symptoms. Calibration typically involves:

Item analysis: Evaluating whether each item on the questionnaire is relevant, clear, and contributes to measuring PTSD symptoms.

Validity testing: Ensuring the instrument accurately reflects PTSD as defined by diagnostic criteria (e.g., DSM-IV or DSM-5).

Reliability testing: Checking the consistency of the measure over time (test-retest reliability) and across different populations (internal consistency, inter-rater reliability).

Through calibration studies, the PROPS can be adjusted to ensure its efficacy across diverse groups, such as different age ranges, cultures, or trauma types.

Bibliography

For further reading and research on PROPS, here are some essential references in the literature:

Frederick, C. J., & Pynoos, R. S. (1998). The Child Post-Traumatic Stress Reaction Index (CPTS-RI). A frequently cited measure that is closely related to PROPS and has been widely validated in trauma research.

American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). This provides the official diagnostic criteria for PTSD, which serves as the basis for many trauma symptom assessment tools, including PROPS.

Saxe, G. N., Ellis, B. H., & Kaplow, J. B. (2007). Collaborative treatment of traumatized children and teens: The trauma systems therapy approach. This book offers a broad perspective on treating children with trauma and may discuss the use of parent-report measures such as PROPS.