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What is a research problem ?   In general a research problem refers to some difficulty which a researcher experiences in the context of either theoretical or practical situation and wants to obtain solution for the same. A research problem is the foundation of any research method and experimental design. It is a situation or circumstances which require a solution to be described, predicted or explained. A research problem does not state how to d something, offer a vague or broad proposition, or present a value question. Identification and formulation of a research problem is the first step of the research process, and it is the most difficult and challenging phase of the research process. It is an area of concern where there is a gap in the knowledge needed for professional practices.  Definition of research problem :- "A situation for which we have no ready and successful response by instinct or by previous acquired habit we must find out what to do."  [ R.S. Woodworth ]  Ac

What is hypothesis ? A tentative statement about the relationship between two or more variables is known as hypothesis. It is a precise, clear, specific and formal testable statement of what the researcher predict about the expected outcome of the study. A hypothesis is a concrete term which we predict before we study. A single study may have one or many hypothesis. A research hypothesis is also known as scientify hypothesis. This is the initial point of any investigation that translates the research questions into a prediction. It is an assumption that is made on the basis of some evidence. It is considered as 2nd most important phase after formulation of research problem. If the statement is found reasonable, then the hypothesis is accepted otherwise rejected. A hypothesis tells you what data to collect and what not to collect, thereby providing focus to the study. Definitions :- Goode and Hatt " a proposition which can be put to test to determine it's validity." Accord

    What is Variables ?  A variable is an observable characteristic of an object or event that can be described according to some well-defined classification or measurement scheme. Example:-  Examples of variables studied in the behavioral or social science research include: gender, income, education, social class, organizational productivity, task orientation, recall memory, recognition memory, and achievement [ Kerlinger & Lee, 2001]. Types of variables:- There are 7 types of variables which are as follows:- 1. Independent Variable:- Variable which are responsible for bringing change in a phenomenon, situation or circumstance. Definitions:- " Independent variable is any variable whose values are in principle, independent of changes in the values of other variables." [ Reber & Reber, A.S.2001, P-784] " Independent variable is the presumed cause of the dependent variable, the presumed effect."  [Kerlinger,2002]  " I

  Nervous system :-  The nervous system is divided into two parts which is :- a central nervous system [CNS] and peripheral nervous system [PNS]. The central nervous system is consists of brain and spinal cord, which lies within the bony cases of the skull and spine. The part of the nervous system outside the skull and spine make up the peripheral nervous system [PNS]. Central nervous system [CNS] :-   It is the part of nervous system. It controls most functions of the body and mind. It consists of two parts : the brain and spinal cord. It is referred to as "central" because it combines information from the entire body and coordinates activity across the whole organism. It receives sensory information from the nervous system and control the body's responses.   Brain :- Human brain is the center of human nervous system, enclosed in the cranium. It is one of the largest and most complex organ in the human body. It receives signals from the body's sensory organs and ou

  What is Questionnaire ? A questionnaire is a set of written or printed questions with a choice of answers. It is a research instrument which is designed for the purpose of gathering information from respondents. The questionnaire was invented by the statistical society of London in 1838. One of the earliest questionnaires was Dean Mille's Questionnaire of 1753. Questionnaires are usually standardized, meaning they will present the same exact questions in the same exact order for multiple participants. A questionnaire is used to conduct a survey, which is the process of gathering, sampling analyzing and interpreting data from a group of people. A questionnaires can be classified as both, quantitative & qualitative method depending on the nature of questions. Definitions :- " A questionnaire is a list of questions given to a number of persons for answer."  [ Bogardus ] " In general, the word questionnaire refers to a device for securing answer to questions by usi