Intrinsic motivation inventory (IMI)

Method suitability

Study type

XField studies
XLab studies
XOnline studies
XQuestionnaire

Development phase

Concepts
Early prototypes
XFunctional prototypes
XProducts on market

Studied period of experience

Before usage
XSnapshots
XAn episode
Long-term UX

Evaluator / Info provider

UX experts
XOne user at a time
Groups of users
Pairs of users

Data

Qualitative
XQuantitative

Applications

XWeb services
XPC software
XMobile software
XHardware designs
Other:

Requirements

Trained researcher
Special equipment

Summary

The Intrinsic Motivation Inventory (IMI) is a multidimensional measurement device intended to assess participants' subjective experience related to a target activity in laboratory experiments. It has been used in several experiments related to intrinsic motivation and self-regulation (see weblink for references).

Description

The instrument assesses participants' interest/enjoyment, perceived competence, effort, value/usefulness, felt pressure and tension, and perceived choice while performing a given activity, thus yielding six subscale scores. Recently, a seventh subscale has been added to tap the experiences of relatedness, although the validity of this subscale has yet to be established. The interest/enjoyment subscale is considered the self-report measure of intrinsic motivation; thus, although the overall questionnaire is called the Intrinsic Motivation Inventory, it is only the one subscale that assesses intrinsic motivation, per se. As a result, the interest/enjoyment subscale often has more items on it that do the other subscales.

Strengths

+ validated instrument
'+ used in different settings

Weaknesses

- same drawbacks as with all subjective scales; in consumer product evaluations the IMI sometimes is not sensitive enough to small variations in product interaction style

References describing the method

http://www.psych.rochester.edu/SDT/measures/IMI_description.php