TYPES OF RESEARCH METHODSThe several types of research methods are follows:ExperimentsSurveysQuestionnairesInterviewsCase studiesParticipant and non-participant observationObservational trialsStudies using the Delphi method.SURVEY METHOD:Survey methodology studies the in-depth sampling of individual units from a population andadministering data collection techniques on that sample. It includes instruments or processes that
ask different question types to a predefined sample, to conduct data-collection and increase thesurvey response rate.The two distinctive member types are in a survey methodology are, professionals in the field thatfocus on empirical survey errors and others that work to design surveys and reduce them. it istherefore both a scientific field and a profession. The primary tasks of a survey methodologistwhile administering a survey is to identify and create samples, validate test questions, select themode to administer questions and validate methods for data collection, statistical analysisanddata reporting.Survey Methods based on DesignSurveys can be administered by the time they take to complete, the two types are:Cross-sectional studies:Cross-sectional studyis defined as an observational researchtype that analyzes data of variables collected at one given point of time across a samplepopulation. population or a pre-defined subset. This study type is also known as cross-sectional analysis, transverse study or prevalence study. The data gathered in a cross-sectionalstudy is from people who are similar in all variables except the one variable which is understudy. This variable remains constant throughout the cross-sectional study. This is unlikelongitudinal study, where variables in the study can change over the course of research.Longitudinal studies:Longitudinal studyis an observational study that employscontinuous or repeated measures to follow particular individuals over prolonged period of timeoftenyearsordecades.Longitudinalstudycollectsdatathatiseither qualitativeor quantitativein nature. In longitudinal study a survey creatoris notinterfering with survey respondents. Survey respondents are observed over a period of timeranging from months to even decades to observe any changes in them or their attitude. Forexample, a researcher wants to find out which disease affects young boys (in the age group of10-15) then the researcher will observe the individuals over that period to collect meaningfuldata.
Correlational studies:Correlational studyis a non-experimental type of researchdesignwhere two distinct variables are studied and a statistical analysis is run to study relationbetween them without the interference of external “variables”. This study aims to understandthe change and level of change in one of the two variables in study, if the other variablechanges. It is close to impossible to understand in this research method though, that, the causeof change in either variable. For example, if an ice-cream truck has a jingle that can be loudly
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