Purpose

The main purpose of the Post-Experimental Intrinsic Motivation Inventory (IMI) is to assess the intrinsic motivation of participants after completing an experimental activity or task. This questionnaire measures various dimensions of intrinsic motivation, such as enjoyment, interest, perceived competence, perceived choice, and effort.

Analysis

The analysis of the data collected from the IMI includes:
Descriptive Statistics: Presentation of the basic characteristics of the data (e.g., means, variances, percentages) for each IMI subscale.
Frequency Analysis: Recording and analysis of the frequency of responses for each question.
Comparative Analysis: Comparison of responses between different groups of participants (e.g., depending on the experimental condition).
Correlation: Examination of the relationship between various IMI subscales and other variables measured in the experiment.
Factor Analysis: Examination of the structure of the IMI subscales in order to verify the theoretical construct of the instrument.

Calibration

The calibration of the IMI involves the process of evaluating the reliability and validity of the instrument. This can be achieved through:
Preliminary Testing: Administering the questionnaire to a small sample of participants to identify and correct problems.
Reliability Analysis: Using statistical methods (such as Cronbach’s alpha) to evaluate the internal consistency of the IMI subscales.
Validity Analysis: Examination of content, criterion, and construct validity to ensure that the questionnaire measures what it is intended to measure.
Cross-Validation: Using data from different samples to verify the reliability and validity of the results.

References

Ryan, R. M., & Deci, E. L. (2000). Self-Determination Theory and the Facilitation of Intrinsic Motivation, Social Development, and Well-Being. American Psychologist, 55(1), 68–78.
DeVellis, R. F. (2016). Scale development: Theory and applications (4th ed.). Sage Publications.
Fowler, F. J. (2013). Survey research methods (5th ed.). Sage Publications.
Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self-determination in human behavior. Plenum.
Vallerand, R. J. (1997). Toward a hierarchical model of intrinsic and extrinsic motivation. Advances in Experimental Social Psychology, 29, 271–360.