Research Vocabulary

#161

subject

Example sentences

1. The subject completed the task while the researcher observed.
2. Each subject received the same instructions.
3. The study protected the safety and privacy of every subject.

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#162

eligibility criteria

Example sentences

1. The eligibility criteria required participants to be over 18 years old.
2. Clear eligibility criteria made recruitment more consistent.
3. The team checked every applicant against the eligibility criteria.

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#163

recruitment

Example sentences

1. Recruitment began after the study received ethical approval.
2. The team used posters and phone calls for recruitment.
3. Fair recruitment gives eligible people an equal chance to join.

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#164

enrollment

Example sentences

1. Enrollment ended when the study reached 300 participants.
2. Each person signed a consent form before enrollment.
3. The report shows monthly enrollment in a simple chart.

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#165

consent rate

Example sentences

1. The report compares the consent rate across the study sites.
2. The researchers explained how they calculated the consent rate.
3. The study reported a high consent rate.

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#166

response rate

Example sentences

1. The study reported a high response rate.
2. The team checked the response rate during data collection.
3. A low response rate may affect the study results.

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#167

nonresponse

Example sentences

1. The survey had high nonresponse among younger adults.
2. The team sent reminders to reduce nonresponse.
3. Nonresponse can make survey results less representative.

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#168

attrition

Example sentences

1. The one-year study had some attrition because families moved away.
2. Regular contact helped the team reduce attrition.
3. High attrition can weaken the final results.

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#169

dropout

Example sentences

1. The researchers recorded the reason for each dropout.
2. Free transport helped reduce dropout from the program.
3. A high dropout rate may create bias in the results.

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#170

retention

Example sentences

1. Friendly follow-up calls improved participant retention.
2. The study had strong retention during the six-month period.
3. The team used reminder messages to support retention.

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#171

sample size

Example sentences

1. The study had a sample size of 250 adults.
2. A larger sample size can give more precise results.
3. The researchers calculated the sample size before recruitment.

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#172

power analysis

Example sentences

1. The team used power analysis to estimate the needed sample size.
2. Power analysis was completed before data collection began.
3. The report explains the assumptions used in the power analysis.

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#173

census

Example sentences

1. The researchers used a census and contacted every household in the village.
2. A census collects information from the whole population.
3. The government conducts a national census every several years.

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#174

probability sampling

Example sentences

1. The supervisor checked the plan for probability sampling.
2. The study describes one strength and one weakness of probability sampling.
3. The team used probability sampling to choose people for the study.

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#175

non-probability sampling

Example sentences

1. The team used non-probability sampling to choose people for the study.
2. Non-probability sampling helped the researchers build the study sample.
3. The report explains why non-probability sampling was appropriate.

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#176

simple random sampling

Example sentences

1. The report explains why simple random sampling was appropriate.
2. The researchers followed clear steps for simple random sampling.
3. The supervisor checked the plan for simple random sampling.

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#177

systematic sampling

Example sentences

1. The supervisor checked the plan for systematic sampling.
2. The study describes one strength and one weakness of systematic sampling.
3. The team used systematic sampling to choose people for the study.

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#178

stratified sampling

Example sentences

1. The team used stratified sampling to choose people for the study.
2. Stratified sampling helped the researchers build the study sample.
3. The report explains why stratified sampling was appropriate.

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#179

cluster sampling

Example sentences

1. The report explains why cluster sampling was appropriate.
2. The researchers followed clear steps for cluster sampling.
3. The supervisor checked the plan for cluster sampling.

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#180

multistage sampling

Example sentences

1. The supervisor checked the plan for multistage sampling.
2. The study describes one strength and one weakness of multistage sampling.
3. The team used multistage sampling to choose people for the study.

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