measures of central tendency Flashcards
it is the blue print of your study
Research Design
a systematic and critical inquiry of the whole truth of past events using the critical method in understanding and the interpretation of facts which are applicable to current issues and problems.
Common research designs in nursing
Historical research
the study focuses at the present condition and the purpose is to describe and find new truth which includes case studies and survey research
Common research designs in nursing
Descriptive research
The researcher carefully examines the relationships (similarities or difference) among several variables.
Common research designs in nursing
Comparative research
seeks to answer questions about causation; researchers attribute the change in one variable to the effect of one or more variable.
Common research designs in nursing
Experimental research
an inexpensive way to gather data from a potentially large number of respondents.Often they are the only feasible way to reach a number of reviewers large enough to allow statistically analysis of the results.
Questionnaires
branch of applied mathematics concerned with the
collection and interpretation of quantitative data and the
use of probability theory to estimate several parameters.
Statistics
The sum of the values divided by the number of values
often called the average. Add all of the values together, then divide the number of values to obtain the mean.
MEAN
The value which divides the values into** two equal halves,** with half of the values being lower than the median and half higher than the median. **Sort the values into ascending order. **If you have an odd number of values, the median is the middle value. If you have an even number of values, the median is arithmetic mean of the two middle vales.
MEDIAN
The most frequently occurring or values. Calculate the frequencies for all of the values in data. The mode is the value with the highest frequency.
MODE
