Table 1: Individual and group performance in spelling, error detection, and correction. The first three columns indicate the subject number and demographical information such as gender and age. The next two columns indicate the spelling accuracy (percent of correct letters) for the whole five sessions (mixing words spelled with 2 and 4 sequences) and for the fifth session alone (the one dedicated to online evaluation of error correction, without considering the online correction), respectively. The next four columns indicate the individual sensitivity, specificity, , and gain in spelling accuracy obtained in the last session, reported in percent. The last four columns show the individual responses to the most relevant questions (see Table 2 for a full description). The last three lines provide results at the group level (first line) and after having distinguished between low specificity (second line) and high specificity (third line) performers.


Subjects
Dem. info.Spelling accuracyErrP detectionCorrectionQuestionnaire
SexAge (year)Sessions 1 to 5Session 5 onlySens. Spec. Gain Q1Q2Q8Did you prefer with or without correction?

1m3482%80%35%69%47%−19%552without
3m2532%25%72%68%25%1%112without
4f3144%36%75%69%24%−2%651without
6f2042%31%81%61%23%0%488with
12m2366%56%48%70%39%−9%764without
14f2352%50%70%72%35%−1%465without

2f3265%56%68%93%39%7%576with
5m2870%72%46%96%46%3%775with
7f3793%89%27%97%44%−3%881without
8f2990%87%62%97%59%0%572without
9f2672%65%69%88%41%1%677with
10f2284%79%90%99%58%12%787without
11m2691%88%25%95%61%−2%884without
13m2355%41%59%90%40%11%569with
15m2763%50%34%94%45%6%788with
16f2594%91%67%99%50%3%889with

SummaryMetasubjectSummary

All7 m; 9 f26.969%62%63%88%36%1%5.86.65.044% with
Spec < 0.753 m; 3 f2653%46%69%69%29%−5%4.55.23.717% with
Spec > 0.854 m; 6 f27.578%72%56%95%45%4%6.67.45.860% with