Descriptive and Inferential Statistics2

descriptive and Inferential Statistics The creative activity of science would find itself lost without research. Research alone however, oftentimes solelyow not answer the questions or solve the problems that scientists set out to solve. Statistics is where research becomes applied and scientists flowerpot make educated guesses to the highest degree future outcomes. Formally, statistics is a branch of mathematics that focuses on organization, analysis, and interpretation of a group of total (Aron, Aron, and Coups, 2006). There are two main branches of statistics that we will explore descriptive and inferential statistics.The main relationship between descriptive and inferential statistics is that they all include numbers from either actual give information or inferred assumptions that try to draw a conclusion or complete given data. descriptive Statistics Descriptive statistics is a method of research used by psychologists. Descriptive statistics make statistics understandab le and describes a group of numbers for a research study (Aron, Aron and Coups,2006). Descriptive statistics are used in summarizing heavy(p) sets of quantitative or numerical information.If there is a grownup touchstone of information for measurement, the best way to show the information is by a graph (Boerre, 2005). Descriptive statistics provide a round-eyed summary about the precedent and the measurements. Descriptive statistics describes the data it allows the researcher to understand a large amount of numbers or data in a simple way (Social Research, 2009). Central tendency refers to the idea that one number can summarize the entire set of measurement. This is a number that is in slightly way central to the set (Boerre, 2005).The mode is the measurement that has been found to be the most frequent. Although the mode, or greatest frequency number, is not used actually often, it is useful when differences are rare or non-numerical (Boerre, 2005). The median is the number w hich is half(prenominal) of the measurement, or midpointof the numbers. The median is a good measurement of the centrality of the numbers and is a better measurement in centrality that the stand for when the data is skewed (Boerre, 2005). The mean is the average. The mean is the sum of all the measurements, divided by the numbers of the measured. miserly is often used in central tendency (Boerre, 2005). Descriptive statistics whitethorn be used in measuring a persons IQ. When intelligence testing is done, some of these tests are then shown in descriptive statistics. Descriptive statistics might also be used in show the GPA or grade point average of a class. Descriptive statistics makes information clear, concise, and easy to read (Social Research, 2009). An example of descriptive statistics would be tables and graphs which are used a lot in medical research studies. Descriptive statistics allow a researcher to describe or summarize their data. For example, descriptive statistics for a study using human subjects might include the sample size, mean age of participants, percentage of males and females, range of scores on a study measure, descriptive statistics are often briefly presented at the low of the Results, according to, (statistically Significant Consulting, LLC, 2003-2010). Inferential Statistics Conclusion Statistics gives form to research in that it organizes, analyzes, and interprets the data collected.Descriptive statistics often describe groups or populations researched, whereas inferential statistics aid its users draw conclusions about future events. Both of these statistical methods play invaluable roles in science. References Aron, A. , Aron, E. , & Coups, E. (2006). Statistics for Psychology (4th ed. ). Upper Saddle River, NJ Pearson Prentice Hall. Statistically Significant Consulting, LLC, (2003-2010). Statistics Overview. Retrieved from http//www. statisticallysignificantconsulting. com/statistics101. htm