Type I Error and Type II Error with 10 Differences

Type I Error and Type II Error with 10 Differences

Image Source: AB Tasty. Type 1 error definition Type 1 error, in statistical hypothesis testing, is the error caused by rejecting a null hypothesis when it is true. Type 1 error is caused when the hypothesis that should have been accepted is rejected. Type I error is denoted by α (alpha) known as an error, … Read more Type I Error and Type II Error with 10 Differences

Null hypothesis and alternative hypothesis with 9 differences

Null hypothesis and alternative hypothesis

Null hypothesis definition The null hypothesis is a general statement that states that there is no relationship between two phenomenons under consideration or that there is no association between two groups. A hypothesis, in general, is an assumption that is yet to be proved with sufficient pieces of evidence. A null hypothesis thus is the … Read more Null hypothesis and alternative hypothesis with 9 differences

13 Differences between Quantitative and Qualitative Data

Difference between Quantitative and Qualitative Data

Quantitative and Qualitative Data Definition Qualitative data is data concerned with descriptions, which can be observed but cannot be computed. On the contrary, quantitative data is the one that focuses on numbers and mathematical calculations and can be calculated and computed. So, for the collection and measurement of data, any of the two methods discussed above can … Read more 13 Differences between Quantitative and Qualitative Data

Questionnaire- Types, Format, Questions

Questionnaire- Types, Format, Questions

A questionnaire is defined as a document containing questions and other types of items designed to solicit information appropriate for analysis. The questionnaire may be regarded as a form of an interview on paper. Procedure for the construction of a questionnaire follows a pattern similar to that of the interview schedule. However, because the questionnaire … Read more Questionnaire- Types, Format, Questions

Descriptive Studies- Types, Applications, Advantages, Limitations

Descriptive Studies- Types, Applications, Advantages, Limitations

A simple description of the health status of a community, based on routinely available data or on data obtained in special surveys, is often the first step in an epidemiological investigation. Such a study is termed as a descriptive study. A descriptive study – as the name implies – describes the distributions of disease, injury or health in a … Read more Descriptive Studies- Types, Applications, Advantages, Limitations

Types of Bias in Epidemiology

Common Types of Bias

Types of Bias in Epidemiology Any trend in the collection, analysis, interpretation, publication, or review of data that can lead to conclusions that are systematically different from the truth can be termed as bias. Bias is a major consideration in any type of epidemiologic study design. It has been defined as “any systematic error in … Read more Types of Bias in Epidemiology

Questionnaires and Schedules

Questionnaires and Schedules

Questionnaires and Schedules The research process is incomplete without the collection of data, which starts after the identification of the research problems and chalking out research design. There are several methods involved in the collection of primary data, like observation, interviews, questionnaires, schedules, etc. Both questionnaire and schedule are popularly used methods of collecting data … Read more Questionnaires and Schedules

Data and its types

Data and its types

Data and its types Data is a set of values of subjects with respect to qualitative or quantitative variables. Data is raw, unorganized facts that need to be processed. Data can be something simple and seemingly random and useless until it is organized. When data is processed, organized, structured or presented in a given context … Read more Data and its types

Common mistakes in Proposal writing

Common mistakes in Proposal writing

Common mistakes in Proposal writing Some of the mistakes are: Choosing a topic that is too large. Choosing a topic which is too complex for research at the level of the researcher. Not giving due consideration to the time factor. This factor is important because the research work is to be completed within the prescribed … Read more Common mistakes in Proposal writing

Questionnaire method of data collection

Questionnaire method of data collection

Questionnaire method of data collection Questionnaire is as an instrument for research, which consists of a list of questions, along with the choice of answers, printed or typed in a sequence on a form used for acquiring specific information from the respondents. In general, questionnaires are delivered to the persons concerned either by post or … Read more Questionnaire method of data collection