Research strategies, HR Management

Research Strategies:

There are three main strategies in research, based around different ways of collecting and analysing empirical evidence:

(a) experiments;

(b) case studies; and

(c) surveys.

Experiments are not often used for the purpose of CIPD dissertations, however it might be useful to describe this strategy briefly here.

Experiments

Experiments measure the effects of manipulating one variable on another variable. They involve the selection of a sample of individuals from a known population and, under controlled conditions, introducing planned change to them. The effects of that change in the sample is then measured.

The strategy is usually used for hypothesis testing and is common in many of the natural sciences where laboratory conditions can be controlled. It is, however, used extensively in the social sciences - principally to explore aspects of behaviour and personality, and in controlled statistical manipulation of figures.

The classical approach to experiments is to choose subjects at random from a known population and divide the sample into two groups - an experimental and a control group. This is often referred to as the "post-test only, two group" design. Conditions for the control group are kept constant, but those for the experimental group are changed in one respect by the researcher. Both groups are then measured in exactly the same way to determine whether there is any difference between them. Using statistical analysis, it is possible to determine the probability of any observed difference occurring purely by chance and, hence, the likelihood that the planned change was the cause. There are other, more sophisticated (and usually much more expensive) methods of testing, but this remains the simplest and most common.

However, the validity of experiments - particularly in the social sciences - is limited in two ways:

¨  internally - by the extent to which the factor or variable actually caused the effect observed (which is really a function of the validity of the controls); and

¨  externally - in respect of the degree to which the findings can be generalised from a specific sample to a population as a whole.

In addition, experimental studies often encounter problems - from both a practical and ethical point of view - when moving from the laboratory to the real world. Controlling conditions is not that easy!

Alternative approaches - sometimes referred to a "quasi-experimental" - have been developed to cope better with conditions outside the laboratory. One of the most common methods is the "pre-test/post-test" design - this seeks to establish control and internal validity by recording conditions both before and after the experiment. The same measurements are carried out on both the experimental and control group before and after the manipulation of the variable and the results compared. Any difference between the two groups, given their prior variations, may be taken as evidence of a causal relationship.

Posted Date: 2/20/2013 5:32:30 AM | Location : United States







Related Discussions:- Research strategies, Assignment Help, Ask Question on Research strategies, Get Answer, Expert's Help, Research strategies Discussions

Write discussion on Research strategies
Your posts are moderated
Related Questions
Drawadiagramshowingthefivestepsintheselectionprocesss

Bargaining Bargaining is the procedure of, debating, cajoling, discussing and even threatening so as to arrive at an agreeable agreement for those being represented. Wages and

Q. What is Formal and structured interview? e. Formal and structured interview: in this type of interview, all the formalities, procedure like fixing the value, time, panel of

Types of incentive schemes: incentive schemes are many and varied. The international labour organization (ILO) classifies all the schemes of payment by the result into four catego

Q. What is Cost value relationship ? Cost value relationship: cost factor in the training should be taken into consideration in evaluating the training effectiveness. Cost of t

Meaning & definition: the interview is a selection technique which enables the employer to view the total individual and directly appraise him and his behaviour. It is a method by

What are the benefits of carrying out performance appraisal in organisations

Q. Show participation through ownership ? Participation through ownership workers may become more involved in industries by making them share holders of the company. Include th

Question: Mail.com Co. Ltd is a company engaged in the BPO activities in Mauritius since 2003. The company is planning to open a new call centre in the north of the country and

“Effective Human Resources Management depends upon sound reward system” Comment.