Infant Toddler Quality of Life (ITQOL)-Long version
Generic
Measure domains: Physical; growth and development; bodily pain; temperament/moods; general behaviour; getting along; general health perceptions; change in health; parental impact—emotion; time; mental; family cohesion; general health
Summary of development: The ITQOL is a multidimensional measure that was developed for a broad age continuum so that scores could be tracked over time. The instrument is a parent-reported measure, and it complements the Child Health Questionnaire, an instrument for ages 5 and older with more than 72 translations. It adopts the seminal World Health Organization’s definition of health (i.e., a state of complete physical, mental, and social well-being and not just the absence of disease) and developmental guidelines used by pediatricians as its conceptual framework. By utilizing items specific to infant development and a conceptual framework similar to but not identical to the CHQ, the ITQOL allows for the continuous measurement of health-related quality of life outcomes across the infant/child continuum. (Landgraf 2013).
Items of the long version of ITQOL (97-103 items) were reduced to 47 items for the short version of ITQOL. The short version was developed using data in Dutch. Here, we only include testing information from English versions of the questionnaire.
Two versions: Long (97 items) and Short (47 items)
Klassen AF, Landgraf JM, Lee SK, Barer M, Raina P, Chan HW, et al. Health related quality of life in 3 and 4 year old children and their parents: preliminary findings about a new questionnaire. Health Qual Life Outcomes. 2003;1(1):1–11
Additional information
| PQL Condition | Generic |
|---|---|
| Measurement Type | Classical Test Theory |
| Number of Items | 97 |
| Time Frame/Recall Period | General, Past 4 weeks; General for Global Health; Compared to Last Year for Change in Health |
| Overall Score | Yes |
| Sub scores/Subscales | All measure domains |
| Ages | 2 months-5 years |
| Respondent | Observer |
| Languages | Arabic, Chinese, English, French, Others, Spanish, Tagalog, Vietnamese |
| Development Used Experts | Klassen 2003 |
| Development Used Patient | Klassen 2003 |
| Convergent Validity with Other Measures | Klassen 2003 |
| Internal Consistency | Klassen 2003 |
| Test-Retest Reliability | Klassen 2003 |
| Known Groups Validity | Klassen 2003 |
| Divergent Validity with Other Measures | Klassen 2003 |
| Measure Website | https://www.healthactchq.com/survey/itqol, https://www.qualitymetric.com/health-surveys/itqol-infant-toddler-quality-of-life-questionnaire/ |
| Licensing | Yes |
| Fees | No |