Prerequisites for this module: at least one category that contains your articles, from these, the accordion elements are created.
Select whether you want to include the jQuery Framework, the accordion script and the CSS file. When not sure, you should leave the standard values.
The multiple open option allows to open multiple elements. Otherwise, only one element can be opened. If you want a element to be opened automatically on page load, then select yes, otherwise, all elemets will be closed on page load.
Next, pick the effect from the list that should be used when opening/closing a element. You can also enter the effect duration.
Now choose whether you want to use the intro text, the main text or both as content of each accordion element.
This setting depends on whether you're using the 'Read more' (editor button) function in your articles or not. If you're not using the 'Read more' function, then Joomla will save the whole article as 'introtext'. If you use the 'Read more' function and add this line, then everything before will be saved as introtext, everything after the line will be saved as main text.
The last option defines the category from which you want to display your joomla articles.