Month: February 2022

1. Personal Interview A personal interview (i.e face to face) is a two-way conversation initiated by an interviewer to obtain information from a respondent. The differences in roles of interviewer and respondent are pronounced. They are typically strangers, and the Read More …

In practice, most statistical data exist in official and private records that are compiled as part of the routine of the day-to-day activities of public organizations and private firms. Thus, government departments routinely record figures on such matters as births Read More …

Among the many threats to internal validity, we consider the following: History During the time that a research is taking place, some events may occur that confuse the relationship being studied. These are events may either increase or decrease the Read More …

What are the characteristics of a good measurement tool? An intuitive answer to this question is that the tool should be an accurate counter or indicator of what we are interested in measuring. In addition, it should be easy and Read More …

A scale is a device for measuring magnitude or quantity of a variable. Scales may be a series of steps, degrees, a scheme of graded amounts from the highest to lowest, an indicator of relative size; scales may also designate Read More …

In everyday usage, measurement occurs when an established yardstick verifies the height, weight or another feature of a physical object. How well you like a song, a painting, or the personality of a friend is also a measurement. In a Read More …