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【正文】 re Control: no music Experimental treatment: slow music Experimental treatment: fast music 16 18 12 Copyright 169。 2023 by Harcourt, Inc. All rights reserved. Completely Randomized Design Randomized Block Design ? An extension of the pletely randomized design in which a single extraneous variable that might affect test units’ response to the treatment has been identified and the effects of this variable are isolated by blocking out its effects. Copyright 169。 2023 by Harcourt, Inc. All rights reserved. Price Red Gold $25 Cell 1 Cell 4 $30 Cell 2 Cell 5 $35 Cell 3 Cell 6 Factorial Design Roller Skates Package Design Effects ? Main effect ? The influence of a single independent variable on a dependent variable. ? Interaction effect ? The influence on a dependent variable by binations of two or more independent variables. Copyright 169。 2023 by Harcourt, Inc. All rights reserved. 2 x 2 Factorial Design with a Posttest Measure Group A R X11 O1 Group B R X21 O2 Group C R X12 O3 Group D R X22 O4 Copyright 169。 2023 by Harcourt, Inc. All rights reserved. 謝 謝 :31:0314:3114::31 14:3114:31::31:03 2023年 2月 3日星期五 2時(shí) 31分 3秒 演講完畢，謝謝觀看！
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