Table 2:

Matched sample blocked by estimated propensity scores. “Min” and “Max P-Score” show the range of estimated propensity scores within each block. The “n” columns give sample sizes by stay-at-home and immigrant groups, and “Average P-Score” gives corresponding estimated propensity scores. “T-Stat” gives the t-statistic for a difference-in-means test between these two averages.

			n		Average P-Score
Block	Min P-Score	Max P-Score	Stay-at-home	Immigrant	Stay-at-home	Immigrant	T-Stat.
1	0.35	0.49	583	524	0.469	0.471	1.49
2	0.492	0.498	33	16	0.492	0.493	0.31
3	0.498	0.498	75	39	0.498	0.498	0
4	0.5	0.504	32	45	0.5	0.5	0.373
5	0.506	0.508	102	148	0.506	0.506	0.165
6	0.509	0.523	145	142	0.514	0.514	−1.26
7	0.525	0.698	140	196	0.58	0.587	1.46

Source: OECD PISA data for 2012, 2015, and 2018.