Populationand Sample Grammatical Errors found In Student Of English department’s Essay

2 “ifthepurposeisto maximizeinformation,thensampling isterminatedwhenno newinformation isforth comingfromnewlysamplesunits; thusredundancyisthe primarycriterion”. Sugiyono 2009:301-302.

3.3. LocationandTimeof Observation

TheobservationislocatedinareaofFaculty ofCulturalStudiesof SumateraUtara, JalanUniversitasNo.19 Medan.Thetakendatafrom20students who made textfree essay. Theobservation isheld on October – December 2014.

3.4. Data Collecting Method

Since the research is adescriptive qualitative research, the main instrumentofthisresearchisthewriterherselfasthekey humaninstrument. QuotedfromSugiono2009:306,LincolnandGuba1986say “theinstrument ofchoiceinnaturalisticinquiry isthehuman”.Itwillbeseenthatotherformsof instrumentationmay beusedinlaterphrasesoftheinquiry,butthehumanisthe initialandcontinuingmainstay.Therefore,thewriteraskey-humaninstrument hasfunction todecidethefocusofresearch,choosing thesamples, collecting the data, analyzingthedata, and makinga conclusion of theresearch’sresult. Azwar 1997:36 says, “Data penelitian dikumpulkan baik lewat instrumentpengumpulandata,observasi, maupunlewatdatadokumentasi.Data yang dikumpulkan mungkin berupa data primer, data sekunder, ataupun keduanya.” 30 Itmeansthatthedataforresearchcan becollectedfrombothresearch instruments,observation,anddocuments. Indoing research,datacanbedivided intotwo;primaryand secondarydata. Primarydata isdata thatdirectlytaken from theobservation time. Whereas secondarydata isdata that taken fromdocumnetary ofthesample.Inthisthesis, thewriteruseoneofthreewaysincollecting data. Observationisget to theprimarydata. Spardley1980andSugiyono2009:315saythattherearethreesteps of observation, theyare: a. Descriptive observation; in this step, the writer do a general and completeexploration, describeall thewriter see, listen, and feel. This observation usuallycalled grand tour observation. b. Focusedobservation;usuallycalledminitourobservation,itmeans thisobservation islimitedto focuson certain aspects. c. Selectedobservation;in this step, thewriter explain thefocus thathas found, so thedatawilbe morespecific. Inqualitativeresearch,collecting datadoneinnaturasetting,primary sourcedata,anddatacollecting techniqueismoredonethroughparticipant obseravation. Sugiyono 2009:309

3.5. Data Analyzing Method

Inthisanalysis,Descriptivequalitativemethodisappliedtoanalyzethe data.Indescriptiveresearch,thedatatabulation isbasedonanalyzing percentage and trend analysis.