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27 August, 19:27

We know that infants fall asleep easily when being gently rocked, but what would be the effect on adults? A 2019 study recruited a random sample of 18 healthy young adults to monitor their quality of sleep over two nights, assessed by the latency to deep sleep (measured in minutes, with shorter a latency being more beneficial). In random order, on one night the participants slept in a stationary bed and on the other night they slept in a bed that gently rocks. The published report states that, compared to a stationary night, continuous rocking shortened the latency to deep sleep, on average.

This study is:

A. a census (population data)

B. a cross-sectional sample survey

C. a case-control observational study

D. a longitudinal cohort study

E. an unscientific study using voluntary response

F. a completely randomized experiment

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Answers (1)
  1. 27 August, 19:33
    0
    G. A matched pairs or repeated experiment

    Step-by-step explanation:

    We know that infants fall asleep easily when being gently rocked, but what would be the effect on adults? A 2019 study recruited a random sample of 18 healthy young adults to monitor their quality of sleep over two nights, assessed by the latency to deep sleep (measured in minutes, with shorter a latency being more beneficial). In random order, on one night the participants slept in a stationary bed and on the other night they slept in a bed that gently rocks. The published report states that, compared to a stationary night, continuous rocking shortened the latency to deep sleep, on average.

    This study is:

    A. a census (population data)

    B. a cross-sectional sample survey

    C. a case-control observational study

    D. a longitudinal cohort study

    E. an unscientific study using voluntary response

    F. a completely randomized experiment

    G. A matched pairs or repeated experiment

    A matched pairs experiment is a type of randomized experiment in which subjects can be grouped into pairs and within each pairs they are assigned to different experiment. The pairs must not be different people but could be the same individuals tested at different times for example:

    The study of the same individuals measured before and after intervention. The study of the same individuals measured twice for two different interventions.
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