Description

The HLC-18 (Health Locus of Control Scale) is an assessment tool that measures individuals’ perceptions of control over their health. It focuses on how people perceive the impact of external and internal factors on their health, dividing this perception into three main categories: internal locus of control, external locus of control (chance), and external locus of control (others).

Analysis and Use of Data

Data analysis from the HLC-18 includes:
Scoring: Participants rate their agreement with various statements on a Likert scale. The scores help categorize perceptions of health control.
Statistical Analysis:Descriptive Statistics: Calculation of mean and standard deviation to determine the overall perception of health control in a population.
Correlation: Analysis of the relationship between health control perception and factors such as age, gender, and socioeconomic conditions.
Comparative Analysis: Examining differences between different groups (e.g., individuals with different illnesses) in their perception of health control.

Objective

The goal of the HLC-18 is to understand how people perceive the influence of factors on their health and how this perception may affect their health-related behaviors, providing data for the development of intervention strategies.

Calibration

The calibration of the HLC-18 involves adjusting the tool for use in various populations through:
Cross-Cultural Studies: The scale is tested in different cultural and social environments.
Reliability Analysis: Statistical methods, such as Cronbach’s alpha, are used to ensure the consistency of the questions.
Validity Testing: The scale is checked to ensure it accurately reflects participants’ perceptions.

References

Wallston, K. A., Wallston, B. S., & DeVellis, R. (1978). Development of the Multidimensional Health Locus of Control (MHLC) Scale. Health Education Monographs, 6(2), 160-170.
Rotter, J. B. (1966). Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs, 80(1), 1-28.