Cognitive Research: Principles and Implications

Table 1 Characteristics of participants

From: How do we measure attention? Using factor analysis to establish construct validity of neuropsychological tests

Characteristics	Frequency (%) or mean (SD)
Age	30.89 (± 14.33)
18–24	292 (45.9%)
25+	344 (54.1%)
Gender
Male	277 (43.6%)
Female	347 (54.6%)
Missing	12 (1.9%)
Ethnicity
Non-Hispanic	554 (87.1%)
Hispanic	40 (6.3%)
Missing	42 (6.6%)
Race
White	394 (61.9%)
Black	19 (3.0%)
Asian	134 (21.1%)
Other	34 (5.3%)
Missing	55 (8.6%)
Education
High school or less	179 (28.1%)
Some college	177 (27.8%)
College or above	267 (42.0%)
Missing	13 (2.0%)

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