Maternal Expertise, Trustworthiness, and Accessibility Scale

Abstract

The Maternal Expertise, Trustworthiness, and Accessibility Scale (META Scale) is a specialized psychological scale designed to measure the perceived quality of the relationship between mothers and their adolescent children. It is administered as a dyadic measure, meaning both the mother and the adolescent complete parallel versions of the instrument, assessing their perceptions of the relationship along three critical dimensions: Expertise, Trustworthiness, and Accessibility. This instrument is commonly utilized in research focusing on the relationship between effective parent-adolescent communication and adolescent developmental outcomes, particularly concerning the reduction of adolescent risk behavior.

Keywords

Maternal relationship, Dyadic measure, Expertise, Trustworthiness, Accessibility, Parent-adolescent communication, Adolescents, Parenting, Psychometrics.

Authors

Guilamo-Ramos, V., Jaccard, J., Dittus, P., & Bouris, A.

Purpose

The primary purpose of the META Scale is to provide researchers and clinicians with a robust, multi-perspective tool for quantifying the perceived quality of the mother-adolescent relationship. It specifically focuses on assessing the relational factors that facilitate or impede open and meaningful communication regarding sensitive or important topics.

By measuring the three core constructs—Expertise (the perceived competence of the mother in providing advice), Trustworthiness (the adolescent’s belief in the mother’s honesty and reliability), and Accessibility (the perceived ease of engaging the mother in conversation)—the scale offers insights into the mechanisms through which maternal support influences adolescent decision-making and behaviors. This framework is vital for intervention studies aimed at improving family communication dynamics.

Construct

The scale is structured around three distinct psychological constructs, each measured by three parallel items for both the mother and the adolescent respondent:

• Expertise: This subscale assesses the degree to which the mother is perceived as competent and knowledgeable in providing useful and helpful advice, particularly concerning important life decisions or topics relevant to the adolescent.
• Trustworthiness: This construct captures the perceived reliability, honesty, and integrity of the mother in the context of their shared communication. High scores indicate the adolescent believes the mother keeps promises and is truthful.
• Accessibility: This subscale measures the perceived availability and willingness of the mother to engage in conversation when the adolescent needs to talk. Items often focus on barriers to communication, such as the mother being “too busy.”

Validity

Specific detailed information regarding the construct, convergent, and discriminant validity of the Maternal Expertise, Trustworthiness, and Accessibility Scale is typically derived from the underlying theoretical work and validation studies conducted on the original Paternal version of the instrument (Guilamo-Ramos et al., 2006). The conceptual validity is strong, as these three factors are widely recognized in communication theory as essential components of source credibility and relational quality.

While the items are face valid, researchers often rely on confirmatory factor analysis (CFA) to ensure that the three distinct factors—Expertise, Trustworthiness, and Accessibility—load correctly and independently for both mother and adolescent responses in various cultural and demographic samples.

Reliability

The internal consistency reliability of the META Scale is assessed using Cronbach’s alpha coefficients for each subscale, separately calculated for adolescent and maternal responses. The reported alpha values indicate good to acceptable reliability across all constructs:

• Adolescents’ Responses:
  • Expertise: α = 0.72
  • Trustworthiness: α = 0.82
  • Accessibility: α = 0.73
• Mothers’ Responses:
  • Expertise: α = 0.70
  • Trustworthiness: α = 0.68
  • Accessibility: α = 0.70

All reliability coefficients meet or exceed the generally accepted threshold of 0.70 for basic research, with the exception of the mothers’ trustworthiness subscale (α = 0.68), which remains close to acceptable limits. These values suggest that the items within each factor consistently measure the intended construct.

Factor Analysis

The scale is designed based on a clear three-factor structure corresponding to Expertise, Trustworthiness, and Accessibility. Although the original source material does not explicitly detail the factor analysis findings for the maternal version, the structure and reliability results imply that the items successfully load onto these distinct factors, supporting the hypothesized measurement model. The use of parallel item sets for both mothers and adolescents necessitates confirmation that the factor structure holds across both respondent groups.

Instrument

Test Type: Dyadic Self-Report Psychological Scale

Format: 5-point Likert scale.

Language Available: English (Implied); potentially Spanish, given its inclusion in a compendium focusing on Latino families.

Population Group: Parent-Adolescent Dyads (Specifically Mothers and their Adolescent Children).

Age Group: Adolescents (typically 12-18 years old) and their Mothers.

Population Details: Originally used in studies involving diverse populations, including Latino families, as evidenced by the compendium source.

Test Methodology: Respondents rate their agreement with each statement using the following scale:

1. Strongly agree
2. Moderately agree
3. Neither agree nor disagree
4. Moderately disagree
5. Strongly disagree

Keywords

Parenting, Communication skills, Relational measures, Psychometrics, Trust, Advice, Family relations.

Authors

Author ORCID Identifier: Not provided in source material.

Affiliation Email addresses: Not provided in source material.

Correspondence Address: Not provided in source material.

Permissions & Fee and Test Year

The scale was published in the context of research by Guilamo-Ramos, Jaccard, Dittus, & Bouris, with the foundational work appearing in 2006. The instrument itself is published within a publicly accessible compendium, suggesting it is available for research use, though users should always consult the original authors or the publication source for specific permissions regarding non-academic or commercial use.

Reference’s

The original conceptualization of the scale structure (Paternal version) is documented in:

Guilamo-Ramos, V., Jaccard, J., Dittus, P., & Bouris, A. (2006). Paternal expertise, trustworthiness, and accessibility: Parent-adolescent communication and adolescent risk behavior. Journal of Marriage and Family, 69(5), 12-29.

The instrument items for the Maternal version can be found on pages 59-60 of Latino Families and Youth: A Compendium of Assessment Tools. The original PDF can be downloaded here: http://www.paho.org/hq/index.php?option=com_docman&task=doc_view&gid=23171&Itemid

Items of the Maternal Expertise‚ Trustworthiness‚ and Accessibility Scale

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Adolescents

Expertise

1. My mother gives me good advice.
2. The advice my mother gives me is helpful when we talk about important topics.
3. When I need good advice about something important‚ I go to my mother for help.

Trustworthiness

1. I can trust my mother when we talk.
2. My mother keeps her promises to me.
3. My mother is honest with me.

Accessibility

1. It is difficult for my mother and me to find a time to talk.
2. My mother is too busy when I want to talk to her about things.
3. My mother has trouble finding time to talk with me.

Mothers

Expertise

1. My daughter thinks I give good advice to her.
2. My daughter finds my advice helpful when we talk about important topics.
3. When my daughter needs good advice about something important‚ she comes to me for help.

Trustworthiness

1. My daughter trusts me when we talk.
2. My daughter knows that I will keep my promises to her.
3. My daughter knows I am honest with her.

Accessibility

1. It is difficult for my daughter and me to find a time to talk.
2. I find I am too busy when my daughter wants to talk with me about things.
3. I have trouble finding time to talk with my daughter