Stocks fell on Friday after data showing services sector activity contracted more than expected in March.

* Unemployment rate rises to highest since 1983.

* Research in Motion's U.S. shares rise 19 pct.

* The Dow Jones industrial average <.DJI> dropped 51.69 points, or 0.65 percent, to 7,926.39. The Standard & Poor's 500 Index <.SPX> dropped 5.30 points, or 0.64 percent, to 829.08. The Nasdaq Composite Index <.IXIC> dropped 8.54 points, or 0.53 percent, to 1,594.09.

(Reporting by Rodrigo Campos; Editing by James Dalgleish)