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Related Concept Videos

Self-Report Tests of Personality01:22

Self-Report Tests of Personality

Self-report inventories are objective personality assessments that use multiple-choice items or numbered scales, typically ranging from 1 (strongly disagree) to 5 (strongly agree). They are often called Likert scales after Rensis Likert. These inventories are widely used due to their ease of administration and cost-effectiveness. One of the most prominent examples is the Minnesota Multiphasic Personality Inventory (MMPI), initially developed in the 1940s to assess abnormal personality traits.
The Scientific Method02:40

The Scientific Method

Research is what makes the difference between facts and opinions. Facts are observable realities, and opinions are personal judgments, conclusions, or attitudes that may or may not be accurate. In the scientific community, facts can be established only using evidence collected through empirical research.
Introspection01:29

Introspection

Introspection, long upheld as a reliable route to self-knowledge, involves examining one's thoughts, emotions, and mental processes. It underpins many psychological practices, from mindfulness meditation to psychotherapy and self-help strategies. However, empirical evidence challenges the accuracy of introspection as a means of understanding oneself.Limitations of Introspective InsightSeminal work by Nisbett and Wilson demonstrated that individuals are frequently unaware of the true causes...
Reliability and Validity01:29

Reliability and Validity

Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.

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Related Experiment Video

Updated: May 25, 2026

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
08:16

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

Published on: May 11, 2020

Determinants of meditation practice inventory: development, content validation, and initial psychometric testing.

Anna-Leila Williams, Jane Dixon, Ruth McCorkle

    Alternative Therapies in Health and Medicine
    |February 9, 2012
    PubMed
    Summary

    Researchers developed the Determinants of Meditation Practice Inventory (DMPI) to identify barriers hindering meditation use. This new tool helps improve study design, potentially increasing participation and retention in meditation research.

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    Last Updated: May 25, 2026

    Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
    08:16

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    Published on: May 11, 2020

    Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
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    Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities

    Published on: September 11, 2021

    Area of Science:

    • Psychology
    • Health Behavior
    • Mindfulness Research

    Background:

    • Meditation's health benefits are challenging to document due to small sample sizes and high attrition in efficacy studies.
    • Barriers to meditation use, contributing to low enrollment and high attrition, have not been previously studied.

    Purpose of the Study:

    • To develop and validate an instrument, the Determinants of Meditation Practice Inventory (DMPI), to capture barriers to meditation practice.

    Main Methods:

    • A five-step mixed-methods approach including literature review, qualitative interviews, content validation, reliability, and construct validation.
    • Data collected from meditation teachers, expert panelists, non-meditators, and 150 cancer family caregivers.
    • Validated using the Big Five Inventory (BFI) and Caregiver Reactions Assessment (CRA).

    Main Results:

    • The final 17-item DMPI encompasses three domains: perceptions/misconceptions, pragmatic concerns, and sociocultural beliefs.
    • The DMPI demonstrated strong psychometric properties with a Cronbach's alpha of 0.87 and an intraclass correlation of 0.86.
    • Significant positive correlations were found between the DMPI and both the BFI and CRA, supporting construct validity.

    Conclusions:

    • The Determinants of Meditation Practice Inventory (DMPI) is a psychometrically sound instrument.
    • The DMPI can aid researchers in addressing participant needs, improving recruitment, minimizing attrition, and enhancing the interpretation of meditation intervention studies.