<![CDATA[This  research  was  conducted  to  test  and  analyze  causal  relationship  between Informational Advertising to Consumer Purchase Decision of Toiletries Product, Soap. The  aim  of  this  research is  also  to  analyze  the  difference  of  information  given  by advertising to consumer purchase decision of soap product, whether the information of soap  product  that  have  been  given to the  participants can influence  the  relationship between informational advertising with consumer purchase decision of soap product.The  method used in this  research is true  experimental  design with laboratory experiment. The number of participants used was 30 participants, consisting of 15 participants for the experiment group that received the information of the soap product and 15 participants for the control group who did not get the information of the soap product.  The  data analysis  tests used in this research are  Paired Sample  T-test  and Independent  Sample  T-test  in  order  to  know  the  difference  and  compare  the results between the experimental research groups.The result of the analysis with t-test shows that experiment done successfully. T-test shows that there is a difference in purchase decision of the participant just right before and after treatment with product information applied. The statistical result showed that H1 is  accepted.  The  statistical  result  also showed  that  soap  information  that  participant received through an advertisement is capable in providing information needed by the participant to consider and decide their purchase decision about the soap product.]]>
