Researchers often wish to develop scales. that respond to a single characteristic. â Determine what features are most important when classifying a group of items. â Generate \factor scores representing values of the underlying constructs for use in other analyses.
Report Abuse. yes a square is always a parallelogram because it has to pairs of parallel lines and that's the rules to a parallelogram but a parallelogram is not always a square because to be a square it has to have two pairs of parallel lines and all the angles have to be 90 degrees. Lily R Â· 6 years ago. Thumbs up.
A parallelogram is a four-sided shape in which the opposite sides  are parallel.   A â¦ rectangle (and a square) is a four-sided shape in which the  opposite sides are parallel and all corners are 90 degrees. The  corners of a parallelogram can be 90 degrees but can also be  different angles. Therefore, rectangles and squares are subsets of  a parallelogram. 25 people found this useful.