In principle, factorial designs can include any number of independent variables with any number of levels. For example, an experiment could include the type of psychotherapy (cognitive vs. behavioral), the length of the psychotherapy (2 weeks vs. 2 months), and the sex of the psychotherapist (female vs. male).
Delete rows or columns in a table. Select one or more table rows or table columns that you want to delete. Tip You can also just select one or more cells in the table rows or table columns that you want to delete.On the Home tab, in the Cells group, click the arrow next to Delete, and then click Delete Table Rows or Delete Table Columns.ip If you select a cell or range in the last column, you can also insert a column to the left or to the right of that column. On the Home tab, in the Cells group, click the arrow next to Insert. Do one of the following: To insert table rows, click Insert Table Rows Above.
To hide unused rows in Excel 2003, select the row beneath the sheet's last used row. (Select the row header to select the entire row.) Next, press Ctrl + Shift + Down Arrow to select every row between the selected row and the bottom of the sheet. Then, choose Row from the Format menu and select Hide. Repeat this process to hide unused columns, only select the column header in the first empty column. Press Ctrl + Shift + Right Arrow and then choose Column from the Format menu instead of Row. In Excel 2007, the selection process is the same.