Fig. 7
From: The measure of socio-economic status in PISA: a review and some suggested improvements
(Source: PISA 2000–2015 database)
Percentage of respondents with missing household possessions component. The figure represents the median, interquartile range (shaded area) and adjacent values for country-level missing rates in the household possession index (HOMEPOS). Adjacent values are defined as the most extreme missing rates within 1.5 times the interquartile range from the nearest quartile. The following countries have missing rates that exceed the upper adjacent value: 2003: Brasil (2.11), Canada (9.78), Czech Republic (4.14), Germany (5.67), United Kingdom (3.72), Netherlands (3.16); 2006: Bulgaria (2.06), Canada (3.53), Chile (2.05), Germany (3.15), Israel (4.03), Norway (1.98), Qatar (4.47); 2009: Brasil (5.68), Germany (7.04), Panama (6.43); 2012: Albania (6.90), Germany (15.13), Iceland (2.73), Israel (2.86), Qatar (3.24); 2015: Brazil (5.22), Germany (12.64), Russia (4.07), Tunisia (4.17)