, , .
(independent variables) , (.. ) () . - , , . , , LeSportsac "di Paris sac" , ( ) .
(test units)
, ,
(test units) , , . , , . LeSportsac , Eckerd .
(dependent variables)
, , .
(dependent variables) , . , , . LeSportsac , Eckerd .
(extraneous variables)
, , .
(extraneous variables) , , . , . , , . Eckerd , , , .
(experiment)
.
(experiment) [6]. , LeSportsac Eckerd .
|
|
(experimental design)
; ; ; .
(experimental design) :
1. ;
2. ;
3. ;
4. [7].
5. .
. : ?
. , . - 280 . , 15 , 50 , : Tide, Kellogg, Aim Joy. , . , , , . [8].
, , (15 50 ). . . . () ( 15 50 ).
, :
X (, ), ;
;
R - ;
, :
;
;
, , .
, :
X 01 02
, (X) 1 02
,
R X, 1
|
|
R 2 02
, , .