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A critique of the design and sampling methodologies of the studies
The main purpose of this paper is majorly to critique the underlying design, sample and prevailing ethical issues utilized within the chosen research studies. The underlying article “The Experience of Patients Undergoing Awake Craniotomy” is typically a qualitative study. The whole study is to determine diverse techniques employed in regard to the feeling and thinking of the patients coupled with the kind of the surgery with an anesthetic. Conversely, the article “The effects of Crossed Leg on Blood Pressure Measurement” takes the form of a quantitative study. The underlying study’s major goal is determining if the crossing of a leg at the knee during the process of the blood pressure measurement possess any impact on the prevailing patient’s blood pressure reading.
Within the quantitative study the researcher decides to choose the utilization of the experimental cross over the corresponding design. Experimental cross entail comparison of dual prevailing participating groups with each other and then exchanging the procedure. This is suitable design since is permits measurement to be recorded for both of the underlying groups thereby enabling them to acts as their own control variables (Daniels, 2004). Within this study, existing group one act as a control group as their blood pressure is taken with their corresponding feet on the ground. The article mainly demonstrate the standard procedure and protocol for the blood pressure measurement that is required to accurately examines BP readings thus preventing false hypertensive readings. Several factors normally influence a person’s blood pressure measurement. Nevertheless, the underlying guidelines for measuring accurately blood pressure is normally inconsistently specify that the prevailing patient ought to maintain feet flat on the floor. The process represent quasi experimental, solitary center, similar group that entail randomized study for the often scheduled visit. The method that was utilized in the analysis of result entails a single way ANOVA and t-test which depict statistically important difference in BP readings in regard to the leg crossed over the other (Keele, 2011). Causal interpretations of the intervention effects is mainly based on the quasi-experimental study designs, which open more challenges than the corresponding causal clarifications based on the correct experiments. This is mainly due to lack of individual randomization that tend to permit more plausible alternative explanations. Besides, the designs also make it cumbersome to eliminate the observed effect that arises due to confounding variables. On the other hand, quasi-experiments within the study frequently deliver solid evidence when it is combined with analysis strategies that curb some of the salient confounding variables.
Several factors that influence people’s blood pressure measurement entail medications, arm and body position, noise, high temperature, defective equipment and anxiety. Blood pressure typically decreases at night as noted by the particular hypertensive subjects. Single blood pressure measurement is determined on the basis of clinical decisions such as drug dosage. Nevertheles.............
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