PSYC 1000 Chapter Notes - Chapter 2.4: Central Tendency, Statistical Significance, Standard Deviation
Document Summary
Descriptive statistics a set of techniques used to organize, summarize, and interpret data. This gives you the big picture of the results. Most research, the statistics used to describe and understand the data are of three types: frequency, central tendency, and variability: frequency. Frequency the number of observations that fall within a certain category or range of scores. But, they are not the only way to depict results of an experiment. Sometimes it is easier to answer questions about the distribution of the data if we present the same information using a smooth line called a curve. Sometimes a distribution is a symmetrical curve, as it is with our gre scores. In this case, the left half is the mirror image of the right half. This is known as a normal distribution (sometimes called the bell curve). Normal distribution (sometimes called the bell curve) a symmetrical distribution with values clustered around a central, mean value.
