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Related Experiment Video

Updated: May 25, 2026

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

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

Published on: September 11, 2021

Investment in Personal Development Scale: a preliminary study.

Eugene W Mathes¹

¹Psychology Department, Western Illinois University, Macomb, IL 61455, USA. EW-Mathes@wiu.edu

Psychological Reports

|January 14, 2012

Summary

This summary is machine-generated.

This study developed the Investment in Personal Development Scale to measure how individuals invest in themselves. Findings show this investment relates to age, education, identity, and conscientiousness.

Related Experiment Videos

Last Updated: May 25, 2026

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

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:

Evolutionary Psychology
Developmental Psychology

Background:

Life history theory posits reproduction involves investment in personal development, mating, and offspring.
Understanding individual differences in investment strategies is crucial for developmental and evolutionary psychology.

Purpose of the Study:

To develop and validate the Investment in Personal Development Scale (IPDS).
To measure individual differences in investment related to personal growth.

Main Methods:

The rational method of test construction was employed.
A 29-item scale was created to assess investment in personal development.

Main Results:

Scale scores demonstrated statistically significant correlations with key demographic and psychological variables.
Positive associations were found between scale scores and age, year in school, identity commitment, and conscientiousness.

Conclusions:

The Investment in Personal Development Scale is a valid measure of personal development investment.
Individual investment in personal development is linked to developmental stage, educational progress, and personality traits like conscientiousness and identity commitment.