Critical elements drawn via appraising a quantitative research article by Tuokko et al

Running head: QUANITATIVE RESEACH APPRAISAL
QUANTITATIVE RESEARCH APPRAISAL
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QUANTITATIVE RESEARCH APPRAISAL1
Introduction
The following paper will briefly expound upon the critical elements drawn via appraising
a quantitative research article. The study so chosen for the same, is the longitudinal study by
Tuokko et al., (2016) which aimed to identify the key factors or health perceptions and as well
driving self-regulations which acted as mediators of participants’ driving perceptions and
attitudes.
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Participant Sampling
Participants from the study by Tuokko et al., (2016) were sampled and recruited from a
sample of cohort groups who were a part of a study known as the ‘Canadian Driving Research
Initiative for Vehicular Safety in the Elderly’ or the ‘Candrive II’ cohort. Such a sampling
strategy demonstrates a purposive sampling method where a selective participants group of
recruited, with experiences or characteristics similar to the research question (Etikan, Musa &
Alkassim, 2016). Indeed, considering that authors Tukko et al., (2016) aimed to assess mediators
in driving behaviors and health perceptions in the elderly, purposefully recruiting participants
from a similar study proved to be a relevant and valid sampling strategy.
However, purposive sampling is often prone to participant as well as researcher bias,
which in turn, is likely to impact the validity of findings from the study (Setia, 2016). Thus,
using random sampling methods instead of cohort sampling could have been a more valid
strategy in the study by Tuokko et al., (2016) since it is likely that responses of participants could
have been biased due to their previous participation in the similar study.