Super Size Me

a) Sample selection size varies for each experiment, depending on how large the whole group under investigation is or how much time it would take to sample a certain group (Rathburn, MacConnadchie, Zizler, Hill, & Moorman, 2012, p. 72) . Sample selection is important part of a studies experimental design because it usually decides how valid a study is. The validity of the sample size and study is usually decided through the peer-review process, which is one of the reasons why the peer review…

1. “When investigating a large population, it is often impractical and usually unnecessary to measure all the elements in the population of interest. Typically, a relatively small number of subject or cases is selected from the larger population.” (McMillian, 2012, p.96) According to McMillian (2012), population is a target you want to study to develop knowledge and to create action plans to assist those individuals. An example is when a researcher use a group of students with autism to find out…

a) The sample size in this survey should be large enough so that it can encompass the whole population. The sample size if too small can lead to misleading and inaccurate conclusions. The more people surveyed the more accurate the representation of the general population will be. b) 3% is an excellent random sampling because out of 17,000 people 3% would be 500 people, which is a fairly large sample size. c) The margin of era is .045 and the sample proportion…

Vincristine is the primary treatment for acute lymphoblastic leukemia (ALL) in children. Common toxicities include peripheral and autonomic neuropathies, which can be life threatening. Vincristine is metabolized extensively by CYP450 3A and its PK has a significant inter-individual variation. In addition to chemotherapy treatment, children are given antifungals for prophylaxis of infections. Itraconazole, voriconazole and fluconazole are commonly used agents. The azole family is an inhibitor of…

North Andaman Islands (NAI) are one of the major island groups of Andaman and Nicobar archipelagos (Fig.1), consisting tropical rainforest encompassing varied species richness and diversity coupled with high endemism (Prasad et al..). As per Champion and Seth [year] the predominant forest types of the study area are Andaman Evergreen (EG), Andaman Semi-evergreen (SEG), Andaman Moist deciduous (MD), Littoral and Mangrove forests. Major part of the island is covered with SEG which is scattered at…

of these studies attempt to prove causation, it is impossible with a correlational design method. Regardless of a positive or negative correlation, it cannot be used to prove causation. In several of the studies there is a small sample size, or even a sample size that is not indicative of the entire population. Additionally there is no knowledge of whether or not the studies used a double blind technique. If a double blind technique is used there is no researcher bias. Without this technique the…

but most importantly, three factors - (i) a deep understanding key terms and fundamental principles (ii) identification of sampling technique for the sample (iii) the practicality or otherwise of using the sampling strategy for the study. Sample size estimation for any study is imperative, hence the seen to ensure that it is done appropriately (Patten, 2014). Too few participants result in an underpowered sample, while too many participants result in an overpowered sample (Pyrczak, 2010). To…

Single-case designs are useful when researchers want to examine an individual’s unique behavior rather than focusing on the behavior of a group of participants; this makes case experiments an optimal technique for both clinical and counseling psychologists as well as behavioral analysts. While the name implies that only one subject is being studied throughout the whole experiment, this design can accommodate several individuals; although, typically this design is not used on large groups of…

The opposition has focused on research looking into the empirical evidence the proponents present. In the research conducted by Trzesniewski, Donnellan, & Robins (2008), they evaluated the empirical basis of the research and findings of Twenge and colleagues(year), specifically the limitations of convenience sampling. The first issue raised involved their technique of cross-temporal meta-analysis, which compiles data from a questionnaire for an extensive number of years. With this concern…

Stress Management App Efficacy: The Impact on Negative and Positive Affect Do various stress management apps effect negative and positive affect differently? The present study consisted of a randomized comparative efficacy trial, which aimed to unveil whether three stress management applications differed in their impact on negative and positive affect. Participants completed a pre-test assessment of their experiences of various negative and positive affects. The pre-test assessment also…