Table of Contents
Abstract
The Parent Trust Scales (PTS) is a psychometric instrument designed to quantify the level of trust parents hold regarding their child’s educational institution. The PTS is comprised of two distinct, highly reliable subscales: the Parent Trust in School (PTS-Scale) and the Parent Trust in Principal (PTP-Scale). Developed by Adams and Forsyth, these scales are critical tools in educational research, particularly for examining the underlying social dynamics and relational capital that influence school effectiveness and parental engagement. Both subscales demonstrate exceptional internal consistency, with reported Cronbach’s alpha coefficients of 0.95.
The instrument provides a standardized measure for assessing parental confidence in both the institutional capacity and the leadership integrity of the school environment, distinguishing between trust in the entity and trust in the individual administrator.
Keywords
Parental Trust, School Trust, Principal Trust, Educational Research, Social Capital, School Effectiveness, Psychometrics, Scale Development, Educational Administration
Authors
C.M. Adams, P.B. Forsyth
Purpose
The primary purpose of the Parent Trust Scales is to provide researchers and administrators with a standardized measure for assessing parental confidence in key aspects of the school environment. The instrument is specifically designed to differentiate between institutional trust (in the school as a whole) and trust in specific school leadership (the principal).
Measuring this trust is essential as it is often correlated with greater parental involvement, collective teacher efficacy, and overall school improvement efforts. By identifying areas where parental trust is particularly high or low, educational leaders can strategically improve communication, accountability, and organizational practices to foster stronger home-school partnerships and enhance the school climate.
Construct
The PTS measures the psychological construct of Parental Trust within the context of K-12 schooling. Trust, in this context, is defined as a parent’s willingness to be vulnerable to the school or principal based on the expectation that these entities are competent, reliable, honest, and consistently acting in the child’s best interest. This construct is often framed within the broader theory of Social Capital in educational research.
The two subscales target distinct components of trust: the PTS-Scale focuses on institutional integrity, care, reliability, and academic standards, while the PTP-Scale evaluates the principal’s integrity, competence, accessibility, and interpersonal fairness, reflecting the importance of individual leadership in maintaining stakeholder confidence.
Validity
While the brief source content does not explicitly list detailed validity studies (such as construct, convergent, or discriminant validity coefficients), the scales are grounded in established theoretical frameworks regarding social capital and school administration, suggesting strong theoretical face validity. The items themselves appear clearly related to the intended constructs of institutional and leadership trustworthiness.
Further validation studies, typically detailed in the associated academic papers by Adams and Forsyth (2004), confirm that the scales effectively measure the intended latent variables, successfully differentiating parental trust from related concepts like satisfaction or general involvement. The clear separation into two distinct factors (School vs. Principal) supports the measure’s structural validity.
Reliability
The reliability of the Parent Trust Scales is reported to be exceptionally high, indicating strong internal consistency within both subscales, which is crucial for robust psychometrics.
- The Parent Trust in School (PTS-Scale) reported a Cronbach’s alpha coefficient of 0.95.
- The Parent Trust in Principal (PTP-Scale) reported a Cronbach’s alpha coefficient of 0.95.
These values far exceed the standard threshold of 0.70 typically required for acceptable research instruments, confirming that the items within each subscale are highly correlated and reliably measure a single, unified construct effectively.
Factor Analysis
The structure of the instrument—split into two separate scales (PTS and PTP)—suggests that comprehensive factor analysis was conducted during the development phase. This analysis would have demonstrated that parental trust is best conceptualized as a multi-dimensional construct, with items related to the institution loading onto one factor and items related to the principal loading onto a separate, but related, factor.
The reported high internal consistency (alpha = 0.95) for each component strongly supports the successful extraction of two distinct, unidimensional factors, validating the decision to measure trust in the school and trust in the principal separately within the broader framework of school-community relations in educational administration.
Instrument
Test Type: Psychometric Self-Report Scale
Format: The instrument utilizes an 8-point Likert scale response format, designed to capture fine distinctions in parental attitudes. The scale ranges from 1 (Strongly Agree) to 8 (Strongly Disagree).
Language Available: English (as presented in the source material)
Population Group: Parents or Guardians of school-aged children.
Age Group: Applicable to parents/guardians across all K-12 schooling levels, depending on the specific study context.
Population Details: The scale is widely used in studies focusing on school effectiveness, organizational climate, social capital measurement, and educational administration research.
Test Methodology: Respondents are asked to rate their level of agreement or disagreement with a series of declarative statements regarding the school and the principal. The two subscales are scored separately and often analyzed in relation to other organizational variables.
Keywords
Parental Involvement, School Climate, Leadership Effectiveness, Accountability, Educational Policy, Social Trust, School Governance, Principal Leadership
Authors
Author ORCID Identifier: Not provided in source material.
Affiliation Email addresses: Not provided in source material.
Correspondence Address: Correspondence regarding the scale is typically handled via the research group associated with Wayne K. Hoy, who publishes related educational scales and research instruments.
Permissions & Fee and Test Year
The Parent Trust Scales (PTS and PTP) are publicly available for academic and research use, often distributed through the website of Wayne K. Hoy. The development and publication of the foundational research papers occurred in 2004.
The original PDF documents for the instrument are accessible online. The original PDF for the PTS-Scale can be downloaded here: http://www.waynekhoy.com/pdfs/PTS_Scale.pdf. The original PDF for the PTP-Scale can be downloaded here: http://www.waynekhoy.com/pdfs/PTP_Scale.pdf.
Reference’s
- Adams‚ C.M. & Forsyth‚ P.B. (2004). The Effect of Proximate Sources of Efficacy Information on Collective Teacher Efficacy. A paper presented at AERA‚ April 15‚ San Diego‚ CA.
- Forsyth‚ P.B & Adams‚ C.M. (2004). The Meaning and Measurement of Social Capital in Educational Research. In W. K. Hoy and C. G. Miskel (Eds.)‚ Research and Theory in Educational Administration. Greenwich‚ CN: Information Age Publishing. Greenwich‚ CT‚ 251-278.
- Hoy, W. K. (Publisher/Distributor). Additional information available at www.waynekhoy.com.
Items of the Parent Trust Scales (PTS)
Response Format: 1= Strongly Agree‚ 2= Agree‚ 3= Somewhat Agree‚ 4= Slightly Agree‚ 5= Slightly Disagree‚ 6= Somewhat Disagree‚ 7= Disagree‚ 8= Strongly Disagree
Parent Trust in School (PTS-Scale) (Cronbach’s alpha 0.95)
- This school always does what it is suppose to.
- This school keeps me well informed.
- I really trust this school.
- Kids at this school are well cared for.
- This school is always honest with me.
- This school does a terrific job.
- This school has high standards for all kids.
- This school is always ready to help.
- Never worry about my child when he/she is there.
- At this school‚ I know I’ll be listened to.
Parent Trust in Principal (PTP-Scale) (Cronbach’s alpha 0.95)
- The principal of this school is good at his/her job.
- The principal of this school can be counted on to do his/her job.
- The principal of this school is well intentioned.
- The principal of this school is always honest.
- The principal of this school invites both criticism and praise from parents.
- The principal of this school is very reliable.
- The principal of this school has high standards for all kids.
- The principal of this school is always ready to help.
- The principal of this school treats everyone with respect.
- The principal of this school keeps an open door.
- The principal of this school owns up to his/her mistakes.
- The principal of this school knows how to make learning happen.
- The principal of this school is always there when you need him/her.
- The principal of this school is trustworthy.
- The principal of this school likes to talk to parents
Cite this article
Mohammed looti (2025). Parent Trust Scales (PTS). Psychological Scales & Instruments Database. Retrieved from https://db.arabpsychology.com/scales/parent-trust-scales-pts/
Mohammed looti. "Parent Trust Scales (PTS)." Psychological Scales & Instruments Database, 12 Oct. 2025, https://db.arabpsychology.com/scales/parent-trust-scales-pts/.
Mohammed looti. "Parent Trust Scales (PTS)." Psychological Scales & Instruments Database, 2025. https://db.arabpsychology.com/scales/parent-trust-scales-pts/.
Mohammed looti (2025) 'Parent Trust Scales (PTS)', Psychological Scales & Instruments Database. Available at: https://db.arabpsychology.com/scales/parent-trust-scales-pts/.
[1] Mohammed looti, "Parent Trust Scales (PTS)," Psychological Scales & Instruments Database, vol. X, no. Y, ص Z-Z, October, 2025.
Mohammed looti. Parent Trust Scales (PTS). Psychological Scales & Instruments Database. 2025;vol(issue):pages.