The Issue of Validity in Qualitative Research in Education Essay

The Issue of Validity in Qualitative Research in Education - Essay Example Research methods appeared to be applied in the field of education only in recent times. Among these methods we can also notice the qualitative research method though even now its application remains limited. Many researches like Johnson /1995, p.5/ believe that â€Å"qualitative techniques are powerful tools for intensifying our understanding of teaching and learning†. He also agrees to the fact that these methodologies received ever growing popularity and acceptance over the last years. Yet it should be mentioned that although qualitative methods are very useful still many researches know little of them and the usage of these methods present great difficulties to them /Stallings, 1995, p.31/. Scholars believe that the main benefit in usage qualitative methods in education is more complete description of a phenomenon. The final objective of usage of qualitative method is better understanding of the information through giving additional details and appealing to the reader’s experience / Stake, 1978, p.5/. Qualitative research is used in the education process for several reasons. First of all qualitative research assist in understanding new of badly investigated phenomenon /Strauss & Corbin, 1990, p.42/. Secondly, qualitative research helps to comprehend new details about the phenomenon, which is already investigated. And finally qualitative research provides more deep and profound information which can’t be done by quantitative methods / Hoepfl/. Still the benefit of the qualitative method to the education can not be fully and explicitly defined. For example, Lancy believes that â€Å"...topic, theory, and methodology are usually closely interrelated in qualitative research† /Lancy, 1993, p.18/. Other researchers like Glesne and Peshkin claim that qualitative research covers many â€Å"philosophical orientations to interpretive research† and deals with a bride range of disciplines like educational criticism, ethnography, case

Power point presentation on The Goblin shark , the retractable jaw, PowerPoint

Power point on The Goblin shark , the retractable jaw, shape and colour of body as well as the electro-sensitive organs for finding prey - PowerPoint Presentation Example The goblin shark’s classification is as follows: it is from the kingdom Animalia, under the phylum chordata, class chondrichthyes, the cartilagenous fishes, subclass elasmobranchii, order lamniformes, family mitsukurinidae, genus mitsukurina, and species owstoni. The English common name is goblin shark, and its Japanese name is Ten-gu za-me, which is literally translated as goblin shark, due to the protruding snout. Slide 4 The goblin shark is mostly seen in the coastal areas of Tosa Bay and Boso Peninsula in Japan, where it was first seen. They are demersal, meso-pelagic to benthic, and are mostly found in the bottom of the ocean floor, as evidenced by fishermen catching them in nets that are dragged on the bottom of the ocean. They can be found as deep as 2000m. They are mostly found in temperate areas, but are also found around the tropics, as shown in the succeeding slide. Slide 5 As seen from the distribution pattern, in yellow, these are the areas where sightings of the goblin shark are recorded from mostly sparse literature available. Because of the inability of the shark to live in aquariums, presumably due to its adaption in living at great depths, other parts of its life cycle such as reproduction and growth are remained in obscurity. However, examining the bowels of dead goblin sharks have made their feeding habits and prey known. Slide 6 As apex predators of the ocean, goblin sharks are just like other sharks that have electro-sensitive organs called the ampullae of Lorenzini, which detect the motions of prey near the ocean floor. Their retractable jaws suck in prey, and with the combination of their blade-like teeth prevent the prey from escaping. They are also known to be nocturnal, due to some sightings of them surfacing the waters at night. Slide 7 The prey most found in the stomachs of the goblin sharks that were caught were small, mesopelagic teleosts such as lantern