noun · academic
subgroup
/ˈsʌbɡruːp/SUB·group
Band 7+task1task2speaking
a smaller, defined group within a larger sample, used for specific comparisons or analyses
Examples
“We conducted a subgroup analysis for participants over 65.”
“The treatment was more effective in the female subgroup.”
“Predefined subgroups should be specified before analysis.”
Band 8 sentence
“To explore heterogeneity, the researchers prespecified several subgroup analyses by age and comorbidity.”
Collocations
- subgroup analysis
- predefined subgroup
- treatment effect in the subgroup
Word family
subgroups noun (plural)subgroup analysis noun phrase
Common mistakes
a small group→a subgroup
sub-group analysis (with hyphen)→subgroup analysis
Say it for a higher band
5group→6segment→7+subgroup
Synonyms
subset
Easily confused
subset
“The subgroup of participants with prior exposure showed a stronger response.”
Related words
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In Science & Research
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