Mediation and Moderation Mediation Yi 1c X X

Mediation and Moderation מיתון ותיווך

Mediation - תיווך Y’=i 1+c. X X M’=i 2+a. X a Y’=i 3+c’X+b. M c=“total effect” of X on Y a*b=“indirect effect” of X on Y c'=“direct effect” of X on Y X Y c M c’ b Y total effect = direct effect + indirect effect c = c’ + (a*b) indirect effect = total effect - direct effect (a*b) = c c’

Mediation - תיווך Motivation Y’=1. 296+0. 794 X Motivation c=0. 794 Choice Efficacy Choice

Mediation - תיווך Motivation Choice Efficacy a= 1. 08 4 M’=-0. 208+1. 084 X c=0. 794 Motivation Choice

Mediation - תיווך Motivation Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Y’=1. 393+0. 288 X+0. 467 M c=0. 794 c'=0. 288 Choice

Mediation - תיווך Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Motivation c=0. 794 c'=0. 288 Choice Direct effect of X on Y = c’ = 0. 288 Indirect effect of X on Y via M = ab = 1. 084*0. 467=0. 506 Total effect of X on Y = c’ + ab = 0. 288 + 0. 506 = 0. 794 = c

Mediation - תיווך Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Motivation c=0. 794 c'=0. 288 Choice מובהקות סטטיסטית Indirect - וה Direct effect - כעת צריך לבדוק האם ה . מובהקים effect

Mediation - תיווך Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Motivation c=0. 794 c'=0. 288 Choice מובהקות סטטיסטית Direct effect

Mediation - תיווך Motivation c=0. 794 4 a= 67 1. 08 0. 4 b= Efficacy Choice Motivation c'=0. 288 Choice מובהקות סטטיסטית . צריך לחשב indirect effect - את ה

Mediation - תיווך Motivation c=0. 794 4 a= 67 1. 08 0. 4 b= Efficacy Choice Motivation c'=0. 288 Choice מובהקות סטטיסטית . צריך לחשב indirect effect - את ה Sobel Test : ' אפשרות א

Mediation - תיווך Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Motivation c=0. 794 c'=0. 288 Choice מובהקות סטטיסטית sa

Mediation - תיווך Efficacy a= 67 1. 08 0. 4 Motivation Choice b= 4 Motivation c=0. 794 c'=0. 288 Choice מובהקות סטטיסטית sb

Mediation - תיווך Motivation c=0. 794 4 a= 67 1. 08 0. 4 b= Efficacy Choice Motivation c'=0. 288 Choice מובהקות סטטיסטית . צריך לחשב indirect effect - את ה Bootstrapping : ' אפשרות ב

Mediation - תיווך Process 1. Analyze 2. Regression 3. Process : מתקבל החלון הבא

Mediation - תיווך PROCESS Run MATRIX procedure: ******* PROCESS Procedure for SPSS Beta Release 130612 ******* Written by Andrew F. Hayes, Ph. D. http: //www. afhayes. com ************************************* Model = 4 Y = Choice X = Motivati M = Efficacy Sample size 120 *************************************

Mediation - תיווך PROCESS ************************************* Outcome: Efficacy M’=-0. 208+1. 084 X Model Summary R. 9690 R-sq. 9390 F 1815. 8944 df 1 1. 0000 df 2 118. 0000 p. 0000 Model constant Motivati coeff -. 2077 1. 0839 se. 0803. 0254 t -2. 5868 42. 6133 p. 0109. 0000 *************************************

Mediation - תיווך PROCESS ************************************* Outcome: Choice Y’=1. 393+0. 288 X+0. 467 M Model Summary R. 4343 R-sq. 1886 F 13. 5994 df 1 2. 0000 df 2 117. 0000 p. 0000 Model constant Efficacy Motivati coeff 1. 3927. 4670. 2879 se. 5006. 5583. 6245 t 2. 7818. 8365. 4610 p. 0063. 4046. 6457 *************************************

Mediation - תיווך PROCESS ************* TOTAL EFFECT MODEL ************** Outcome: Choice Y’=1. 296+0. 794 X Model Summary R. 4287 R-sq. 1838 F 26. 5667 df 1 1. 0000 df 2 118. 0000 p. 0000 Model constant Motivati coeff 1. 2956. 7941 se. 4864. 1541 t 2. 6638 5. 1543 p. 0088. 0000 *************************************

Mediation - תיווך PROCESS ********* TOTAL, DIRECT, AND INDIRECT EFFECTS ********** c Total effect of X on Y Effect SE. 7941. 1541 c' Direct effect of X on Y Effect SE. 2879. 6245 ab Indirect effect of X on Y Effect Boot SE Efficacy. 5062. 6519 ab Normal theory tests for indirect effect Effect se Z p. 5062. 6054. 8361. 4031 t 5. 1543 p. 0000 t. 4610 p. 6457 Boot. LLCI -. 7594 Boot. ULCI 1. 7710 Bootstrapping Sobel Test *************************************

Mediation - תיווך PROCESS ********** ANALYSIS NOTES AND WARNINGS ************* Number of intervals: 1000 bootstrap samples for bias corrected bootstrap Level of confidence for all confidence intervals in output: 95. 00 ------ END MATRIX ----- confidence

Mediation - תיווך : כדאי להכיר indirect effect - שיטות נוספות לבדיקת מובהקות ה Monte Carlo Confidence Intervals Distribution of the Product (Dop) Method

Mediation - תיווך Y’=i 1+c. X X Y c M’ 1=i 2+a 1 X M’ 2=i 3+a 2 X Y’=i 4+c’X+b 1 M 1+b 2 M 2 c=c’+a 1 b 1+a 2 b 2 a 1 M 1 b 1 c’ X a 2 M 2 Y b 2

Mediation - תיווך Y’=i 1+c 1 d 1+c 2 d 2 M’=i 2+a 1 d 1+a 2 d 2 Y’=i 3+c’ 1 d 1+c’ 2 d 2+b. M c 1=c’ 1+a 1 b c 2=c’ 2+a 2 b d 1 Y c 1 c 2 d 2 M a 1 b a 2 d 1 d 2 c’ 1 c’ 2 Y

Coefficientsa Model Unstandardized Coefficients B Std. Error 1 (Constant) -1. 347 Motivation 1. 563 Barriar 1. 353 Barri. XMotiv -. 393 a. Dependent Variable: Choice Standardized Coefficients Beta 1. 057. 334. 844. 491 1. 702. 156 -1. 587 t Sig. -1. 274 4. 673 2. 756 -2. 517 . 205. 000. 007. 013

Moderation - מיתון data list free/barrier effect llci ulci. begin data. 1. 0000 1. 1700. 7604 1. 5796 1. 1000 1. 1307. 7419 1. 5195 1. 2000 1. 0914. 7220 1. 4609 1. 3000 1. 0521. 7004 1. 4039 1. 4000 1. 0129. 6769 1. 3488 1. 5000. 9736. 6512 1. 2959 1. 6000. 9343. 6231 1. 2455 1. 7000. 8950. 5921 1. 1979 1. 8000. 8557. 5582 1. 1533 1. 9000. 8164. 5211 1. 1118 2. 0000. 7772. 4808 1. 0735 2. 1000. 7379. 4373 1. 0385 2. 2000. 6986. 3907 1. 0064 2. 3000. 6593. 3413. 9773 2. 4000. 6200. 2893. 9507 2. 5000. 5807. 2350. 9265 2. 6000. 5415. 1787. 9042 2. 7000. 5022. 1206. 8837 2. 8000. 4629. 0610. 8647 2. 9000. 4236. 0002. 8470 2. 9003. 4235. 0000. 8470 3. 0000. 3843 -. 0618. 8304 end data. graph /scatterplot(overlay)=barrier WITH llci ulci effect (pair).

Moderation - מיתון