Related Experiment Video
Updated: Aug 10, 2026

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
The Meaning in Life Scale: determining the reliability and validity of a measure
Abstract:
The Meaning in Life (ML) Scale and Uniscale were developed to assess the sense of purpose, beliefs, and faith of patients in hospice and rehabilitative programs. Specialists have called for such instruments as meaning in life is not adequately measured by quality of life measures. The reliability and validity of the measures were tested with 257 English and French patients in long term care facilities in Montreal. The internal consistency of the responses to the 15 items in the ML Scale and the stability of the measures over a two week period were at acceptable levels. With respect to construct validity, the direction and magnitude of the correlation of the measures with those of subjective well-being, social support, pain, activities of daily living, quality of life, and social desirability were generally as predicted. Further research is required to determine the utility of the ML Scale and Uniscale in clinical research.
Related Concept Videos
Reliability and Validity
Interval Level of Measurement
Data measured using the interval scale are similar to ordinal level data because they have a definite arrangement. However, in the interval level of measurement, the differences between data values are meaningful even though the data does not have a starting point.
Temperature is measured using the interval scale. It is measurable data, and the difference between the...
Measures of Intelligence
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this; it...
Wechsler's Contribution to Measures of Intelligence
Self-Report Tests of Personality
Strategies of Self-Presentation III: Self-Monitoring
