A simple 5-function calculator with memory Adobe Flash Player required. They typically extend upward and downward one standard error from the top of each bar or point. There are a few important APA style guidelines here.
This is an interactive set of web pages to help you select the right kind of analysis to perform on your data. The points are connected by lines. Needs Java. They can be presented either in the narrative description of the results or parenthetically—much like reference citations.
Values should increase from left to right on the x-axis and from bottom to top on the y-axis. Each point in a line graph represents the mean score on the dependent variable for participants at one level of the independent variable. See Chapter 11 "Presenting Your Research" for more information.