The goal of lesson three was to identify the sampling methods in five psychology research publications and discuss any ethical considerations posed in these articles. This, appropriateness of the sampling methods used, and artifacts and confounding variables introduced because of the techniques are discussed. In addition, a review of whether the researchers accomplished their goals by utilizing these processes follows. McCann & Holmes’s used nonprobability convenience sampling for their study, “Influence of Aerobic Exercise on Depression” completed in 1984. These researchers gave the Beck Depression Inventory to 250 women who were in an undergraduate general psychology class. Sixty of the 250 women had mild to severe depression. Those with
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used nonprobability convenience sampling in the study “Weekly exercise consistently reinstates positive mood” published in European Psychologist in 1998. The researchers attempted to survey all of the attendees in four classes at a fitness club. Steinberg et al. state, “217 persons were tested during the six or seven sessions” (p. 273). Use of the word “or” makes us wonder if Steinberg et al. knew how the sampling took place. They go on to state that statistics used to prove the hypothesis were taken from those participants who attended five or more classes. Comparing this sample to the population as a whole, is inappropriate since those who felt negative moods after exercise were not likely to attend an aerobics class five or more times. Also, participants were notified of this research. Ethically, this is better than lying, but it entices the reader to wonder if reactivity and good subject roles are also responsible for the positive …show more content…
in 2005 also used convenience nonprobability sampling strategies. Nonetheless, this group of researchers did accomplish their goal of studying their population, psychiatric inpatients. All psychiatric inpatients at New Hampshire Hospital were invited to participate in the program. One hundred and thirteen inpatients participated. The yogis varied in age from 14 to 81 and were 52.2% female, 46% male and 1.8% gender neutral (Lavey et al., 2005). Demographics also displayed a wide range of disorders. Bias is not evident and the statistics do seem to be a close representation of the greater population. Ethically, the researchers actively deceived the participants by telling them that the survey was for quality assurance purposes. All the same, this is reasonable since telling the patients the correct reason for the POMS may have induced
used nonprobability convenience sampling in the study “Weekly exercise consistently reinstates positive mood” published in European Psychologist in 1998. The researchers attempted to survey all of the attendees in four classes at a fitness club. Steinberg et al. state, “217 persons were tested during the six or seven sessions” (p. 273). Use of the word “or” makes us wonder if Steinberg et al. knew how the sampling took place. They go on to state that statistics used to prove the hypothesis were taken from those participants who attended five or more classes. Comparing this sample to the population as a whole, is inappropriate since those who felt negative moods after exercise were not likely to attend an aerobics class five or more times. Also, participants were notified of this research. Ethically, this is better than lying, but it entices the reader to wonder if reactivity and good subject roles are also responsible for the positive …show more content…
in 2005 also used convenience nonprobability sampling strategies. Nonetheless, this group of researchers did accomplish their goal of studying their population, psychiatric inpatients. All psychiatric inpatients at New Hampshire Hospital were invited to participate in the program. One hundred and thirteen inpatients participated. The yogis varied in age from 14 to 81 and were 52.2% female, 46% male and 1.8% gender neutral (Lavey et al., 2005). Demographics also displayed a wide range of disorders. Bias is not evident and the statistics do seem to be a close representation of the greater population. Ethically, the researchers actively deceived the participants by telling them that the survey was for quality assurance purposes. All the same, this is reasonable since telling the patients the correct reason for the POMS may have induced