In
psychology
Psychology is the scientific study of mind and behavior. Its subject matter includes the behavior of humans and nonhumans, both consciousness, conscious and Unconscious mind, unconscious phenomena, and mental processes such as thoughts, feel ...
, ipsative questionnaires (; from
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
:
''ipse'', 'of the self') are those where the sum of scale scores from each respondent adds to a constant value. Sometimes called a forced-choice scale, this measure contrasts
Likert-type scales in which respondents score—often from 1 to 5—how much they agree with a given statement (see also
norm-referenced test
A norm-referenced test (NRT) is a type of Test (student assessment), test, Educational assessment, assessment, or evaluation which yields an estimate of the position of the tested individual in a predefined population, with respect to the trait be ...
).
In psychology
While mean scores from Likert-type scales can be compared across individuals, scores from an ipsative measure cannot. To explain, if an individual was equally
extraverted
Extraversion and introversion are a central trait theory, trait dimension in human personality psychology, personality theory. The terms were introduced into psychology by Carl Jung, though both the popular understanding and current psychologic ...
and
conscientious and was assessed on a Likert-type scale, each trait would be evaluated singularly, i.e. respondents would see the item "I enjoy parties" and agree or disagree with it to whatever degree reflected their preferences.
If the same traits were evaluated on an ipsative measure, respondents would be forced to choose between the two, i.e. a respondent would see the item "Which of these do you agree with more strongly? a) I like parties. b) I keep my work space neat and tidy." Ipsative measures may be more useful for evaluating traits within an individual, whereas Likert-type scales are more useful for evaluating traits across individuals.
Additionally, ipsative measures may be useful in identifying faking.
However, ipsative measures may, especially among testing-naïve individuals exhibiting high levels of
conscientiousness
Conscientiousness is the personality trait of being responsible, :wikt:careful, careful, or :wikt:diligent, diligent. Conscientiousness implies a desire to do a task well, and to take obligations to others seriously. Conscientious people tend to ...
and/or
neuroticism
Neuroticism is a personality trait associated with negative emotions. It is one of the Big Five traits. Individuals with high scores on neuroticism are more likely than average to experience such feelings as anxiety, worry, fear, anger, shame ...
, decrease test validity by discouraging response and/or encouraging non-response. For example, a test's authors may force respondents to choose between "a) Animals chase me in my dreams" and "b) My dreams are nice" in an effort to see whether a given respondent is more inclined toward "faking bad" or toward "faking good." When faced with such a question, a child frequently terrified by nightmares that rarely if ever involve animals, and especially one whose parents have taught him/her strict rules against lying, may simply refuse to answer the question given that for that respondent nearly all of the time both descriptions are inaccurate. Even a previously presented guideline "Choose the answer that
est/betterdescribes you" may be unhelpful in such a situation to responders who worry that endorsing one item or the other will still involve stating it to be accurate or "well"-descriptive to some positive degree. Only if the guideline is presented as "Choose the answer that more accurately or less inaccurately describes you" and the above-described responder is sophisticated enough to reason out his/her response in terms of "Despite the infrequency with which I have nice dreams, I have them
ore frequently / less infrequentlythan dreams in which animals chase me" (or, in theory, vice versa) will such a responder be willing to answer the question—and phrasing the guideline in this way bears its own cost of making the question reveal less about the respondent's propensities because the respondent is no longer forced to "fake" one way or another.
In education
In education, ipsative assessment is the practice of assessing present performance against the prior performance of the person being assessed. One place where this might be implemented is in reference to tests used with
K-12
K-1 is a professional kickboxing promotion established in 1993 by karateka Kazuyoshi Ishii.
Originally under the ownership of the Fighting and Entertainment Group (FEG), K-1 was considered to be the largest Kickboxing organization in the world. ...
student
A student is a person enrolled in a school or other educational institution, or more generally, a person who takes a special interest in a subject.
In the United Kingdom and most The Commonwealth, commonwealth countries, a "student" attends ...
s in the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, where
value-added modeling of teacher performance is currently popular.
Ipsative assessment can be contrasted with
criterion-referenced assessment and
norm-referenced assessment. Ipsative assessment is used in everyday life, and features heavily in physical education and also in computer games. Encouraging pupils to beat their previous scores can take peer pressure out of situations and eliminates the competitive element associated with norm-based referencing. It can be particularly useful for children with learning disabilities and can improve motivation.
See also
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Concept inventory
*
Criterion-referenced assessment
*
Norm-referenced assessment
*
Psychological assessment
*
Psychometrics
Psychometrics is a field of study within psychology concerned with the theory and technique of measurement. Psychometrics generally covers specialized fields within psychology and education devoted to testing, measurement, assessment, and rela ...
*
Standardized test
A standardized test is a Test (assessment), test that is administered and scored in a consistent or standard manner. Standardized tests are designed in such a way that the questions and interpretations are consistent and are administered and scored ...
*
Two-alternative forced choice
References
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Further reading
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Blinkhorn, S, Johnson, C and Wood, R. (1988). "Spuriouser and spuriouser:The use of ipsative personality tests." Journal of Occupational Psychology,61,153-162.
Experimental psychology
Educational psychology