Randomization

1. Was there a plausible rationale for the study? (In your response, specify the rationale for the study and expand upon why or why not you feel that it was plausible) Yes; In individuals with idiopathic Parkinson’s Disease (PD), roughly 90% of people experience accompanying voice and speech problems. The Lee-Silverman Voice Treatment (LSVT-LOUD) has been shown to an effective behavioral treatment for such deficits. It has also been demonstrated through recent literature that the use of deep…

intervention under study. Subjects are randomly assigned to 2 study groups, where one group receives the treatment being investigated and the control group usually receives a placebo. Random assignment is the most important aspect of this study design. Randomization reduces the potential for confounding by ensuring that chance variation is the only threat to the comparability of the study groups. The Randomized, controlled trials is generally considered best study designs because the process of…

offer paper, which defeats the rock and allows a slap in return. Therefore, Len Fischer in his book argues that to beat the human players, it is not necessary to look out for patterns. Though he already found one way to support the complete randomization or mixed strategy. It is better to rely on the statistics which move or gesture is the tendency of people play in this Rock Paper Scissors…

Decompressive Craniectomy and the Return of Functionality in Traumatic Brain Injury Patients with Increased Intracranial Pressure The brain and its surrounding protective bony layer provide for a unique situation with regards to traumatic brain injuries (TBI). Unlike other tissue in the body, which are free to expand outwards when inflammation or trauma occurs, the brain cannot. In the average adult, the cranial vault has the ability to accommodate for up to 1500mL of volume. When cerebral…

Diabetes and hypertension is a prevalent, worldwide epidemic that is on the rise. Everyday, more and more people are diagnosed with diabetes mellitus (DM) or hypertension (HTN); at times, some patients are diagnosed with both. In 2012, 1.7 million new cases were diagnosed among people who are aged 20 years or older in the United States. According to the CDC 2014 National Diabetes Statistics Report, 29.1 million or 9.3% of the United States population have diagnosed or undiagnosed diabetes. In…

Sampling and Experimental Condition Assignment The participants for this study will be undergraduate college students in introductory criminology and criminal justice classes at John Jay College of Criminal Justice in New York, NY. Based on preliminary power analyses, a minimum sample size of 159 will be necessary to detect a medium-sized effect (f = .25) with a power of .80 at an α level of .05. The participants will be randomly assigned using a computer based algorithm to watch one of three…

design for the music industry using the Internet is simple using the Cause and Effect model. The three basic principles of experimental design controls so that systematic effects of treatments can be observed are: control by matching, control by randomization, and control by statistical adjustment. We need experimental design to control variability so treatment effects can be identified (Hedges, 2008). In my…

tumor PgR content, i.e., negative (<10 fmol/mg cytosol protein) or positive (ù10 fmol/mg cytosol protein), and to tumor ER content, which was examined as a continuous variable and categorized according to the stratification categories used at randomization. Model results have been summarized as…

Life after High School This investigation was to find the change in future aspiration of high school seniors in the US after 9/11. The suggestion was that the economic impact of the attack would cause fewer childten to have the means to enroll in college. However some where divided on the impact it would have on enlistment as wether it would increase due to patriotistic sentiment or decrease with them rise in probability of actual engagement. An unidentified polling organization arranged…

be found on the relation of self-efficacy and self-satisfaction as well as other psychological factors, in relation to post-injury rehab. Comments: This study has been proven to have high validity compared to more previous studies, due to the randomization of the sample size and the two groups involved. I do think that having one group with 20 participants and the other with 17 may cause an issue when comparing overall results because the numbers are off. Overall, I found this study to be very…