Day: January 9, 2017

#HRv#Word: #Controlled #Experinent

​Çontrolled experiment is a phenomenon where research is conducted by changing only one variable at a time. All the other parameters are kept constant and only one parameter is changed for research purpose in controlled experiment.

    Research is a continuous phenomenon. Every now and then researchers are trying hard to propose a theory or test certain hypothesis and by deducing certain results they either support the work done by other researchers of the field or provides other dimension to it by expressing their contradictory opinion

    Before heading towards the experiments in research, it is therefore of great importance for us to figure out the basic rules which every researcher aims to comply with while working on a research objective. The two basic conditions are –

    – Sample should be the true representation of the population

    – They like to control as many variable as possible

    Researchers often choose those experiments for research which fulfil the basic the researcher’s community the controlled experiment is amongst the most preferred one. Under this experiment a researcher tries to study effect of an independent variable on the dependent variable

    What are independent and dependent variable?

    Independent variable

    Those factors in an experiment which remain unchanged on altering the other factors of the experiment.

    Dependent variable

    The factors of research experiment which changes as a result of change in other corresponding factors

    Controlled experiment is an experiment through which an observer tests the hypothesis by making changes in one variable and looking for its consequent changes in other this experiment independent variable is altered and its affects are being observed on the dependent variable which remains unaltered during the experiment.

    For example-Our hypothesis is as follows-Job satisfaction depends upon the salary of an employee.

    Here, salary is our independent variable and job satisfaction is our dependent variable.

    By conducting a controlled experiment we would like to see the change in job satisfaction by altering salary of employees of the organization.

    #HR #Word: #Contrast #Effect

    Contrast effect is adding or reducing value to subjects / objects, what we perceive & how we analyze them as compared to a normal case. Contrast effect changes the perception for the good or the bad, when exposed to a relatively bad or good subject respectively. 

    Perception transformation happens only when we are subjected to various changes that affect our thoughts & beliefs. This is basically about making one feel the difference after making him go through a series of related changes. This change could be either for betterment or for negative causes, for success or for failure.


    1. Simultaneous Contrast: Technique where one pattern is dependent on the other pattern. Basically making use of illusions.

    Example, the stripes on zebra or a tiger is simultaneous contrast, where it is black on white or vice versa in case of zebra.

    2. Successive contrast: It could be considered a modified version of perception. An impact is caused after being exposed to some other perception for a period of time.

    Example, A person working for T&D when shifted to marketing for some months could later prove to be a good talent acquisition member as he is exposed to the various market scenarios & demands.

    3. Meta-contrast: It makes use of time & space, where the effect of one dominates the other for a fraction of time.

    Example, A newly recruited fresher, would have troubles getting used to the rigor of everyday life in the office for a period of time.

    4. Para-contrast


    1. If implemented in a proper alignment, it has the potential to bring about a long term change for the person.

    2. It could also help us determine & discover some underlying talent & skills for the people.

    3. This could benefit the person in knowing himself or herself better


    1. Learned helplessness

    2. If implemented in a wrong way, has the potential to cause long term damage to the person & the organization.

    3. Resistance to change may cause stress & lifestyle change, which may affect the person in the long run.

    Thus the idea of contrast effect is to contribute to working on the perception management of Human Resources, and influencing them in the best possible manner.