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University of Louisville
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1. Reliability Analysis of Self efficacy and Locus of Control for Students with Mild Disabilities Thomas J. Simmons, University of Louisville
Yvonne A. Niemann, Georgetown College
Stephen K. Miller, Western Kentucky University
2. University of Louisville & Jefferson County Public Schools GOAL: Transition to employment, post-secondary education, and independent living
3. POPULATION 109 students (MMD, BD, & LD)
at risk of dropping out
free/reduced lunch status
six different high schools
all participated in STEP Intervention,
one to three years involvement
50 answered a follow-up survey and had parent permission to be in this study
4. Demographics Personal Identity
Ethnicity: 38 White, 12 Black
Gender: 26 Male, 24 Female
Disability:
MMD 5
BD 5
LD 40
5. PERSONALITY MEASURES Self-efficacy Scales (General and Social)
Sherer, M., Maddux, J. E., Mercandante, B., Prentice-Dunn, S., Jacobs, B., & Rogers, R. W. (1982). The Self-efficacy Scale: Construction and validation. Psychological Reports, 51, 663-671.
Nowicki-Strickland Locus of Control Scale
Nowicki, S., Jr., & Strickland, B. R. (1973). A Locus of Control Scale for children. Journal of Consulting and Clinical Psychology, 40, 148-154.
6. Effects of personality development are well documented on a variety of populations and content areas.
Findings of research typically not extended to special education students.
Special education students noted for lower self-efficacy and lessened locus of control.
YET---
NO VALIDATION OR RELIABILITY FOUND FOR TWO TESTS USED
7. MEDIATING FACTORS Self-efficacy ScaleGeneral & Social
a belief that ones actions will have an impact and will positively affect ones future
(Sherer, Maddux, Mercandante, Prentice-Dunn,
Jacobs, & Rogers, 1982)
8. RELIABILITY Self-efficacyGeneral
Composite 3.49, Cronbachs alpha .640
Adjusted by omitting Q. 12 and computing with
16 items instead of 17 for new alpha of .719
(p > .07 for exploratory research,
Nunnally and Bernstein, 1994 )
9. Table 1Descriptive Statistics and Reliability for Self-efficacy (General) Scale (N = 50)_______________________________________________________________________________________________________________Item M SD Min Max R a - d_______________________________________________________________________________________________________________Q2 4.12 .983 1 5 4 .631Q3 3.26 1.337 1 5 4 .641Q4 4.24 .960 1 5 4 .607Q7 2.92 1.383 1 5 4 .632Q8 3.70 1.233 1 5 4 .603Q11 3.10 1.147 1 5 4 .638Q12 2.22 1.166 1 4 3 .719Q15 3.76 1.170 1 5 4 .596Q16 3.72 1.144 1 5 4 .617Q18 3.46 1.199 1 5 4 .627Q20 3.28 1.196 1 5 4 .605Q22 3.18 1.257 1 5 4 .625Q23 3.84 1.076 1 5 4 .590Q26 3.18 1.395 1 5 4 .602Q27 3.64 1.225 1 5 4 .661Q29 4.10 1.200 1 5 4 .599Q30 3.54 1.328 1 5 4 .607Composite 3.49 .464 1 4.94 3.94 .640a ________________________________________________________________________________________________________________Note. Min = Minimum; Max = Maximum; R = Range; a - d = alpha with item deleted.avalue for composite for a - d is Cronbachs coefficient alpha for overall scale.
10. RELIABILITY
Self-efficacySocial
Composite 3.48, Cronbachs alpha .589
Adjusted by omitting Q. 14 and computing with
5 items instead of 6 for new alpha of .760
11. Table 2 Descriptive Statistics and Reliability for Self-efficacy (Social) Scale (N = 50)_____________________________________________________________________________ Item M SD Min Max R a - d_____________________________________________________________________________Q6 3.76 1.519 1 5 4 .372Q10 3.36 1.242 1 5 4 .364Q14 3.04 1.385 1 5 4 .589Q19 3.52 1.093 1 5 4 .384Q24 3.40 1.278 1 5 4 .425Q28 3.82 .983 1 5 4 .313Composite 3.48 .657 1 5 4 .461a_____________________________________________________________________________Note. Min = Minimum; Max = Maximum; R = Range; a - d = alpha with item deleted.aValue for composite a - d is Cronbachs coefficient alpha for overall scale.
12. MEDIATING FACTORS Locus of Control Scale
A belief that the power to effect change
comes from within oneself
Internal means the person believes s/he can
control how issues affect them.
External suggests belief that outside forces
control ones life.
(Nowicki & Strickland, 1973)
13. RELIABILITY Locus of Control
Composite .39, Cronbachs alpha .719
Adjusted by replacing missing items with
means for each question
39% of students were External
14. Table 3Descriptive Statistics and Reliability for Locus of Control Scale (N = 50) ________________________________________________________________________________________________________________Item M S Min Max R a - d________________________________________________________________________________________________________________Q1 .29 .452 0 1 1 .707Q2 .72 .454 0 1 1 .721Q3 .60 .484 0 1 1 .707Q4 .06 .240 0 1 1 .716Q5 .64 .485 0 1 1 .703Q6 .10 .303 0 1 1 .713Q7 .28 .454 0 1 1 .708Q8 .38 .476 0 1 1 .732Q9 .49 .500 0 1 1 .712Q10 .48 .494 0 1 1 .722Q11 .52 .484 0 1 1 .709Q12 .50 .505 0 1 1 .706Q13 .29 .452 0 1 1 .721_______________________________________________________________________________________________________________ (table continues)
15. Table 3. (continued)________________________________________________________________________________________________________________Item M SD Min Max R a - d________________________________________________________________________________________________________________Q14 .48 .494 0 1 1 .711Q15 .20 .404 0 1 1 .715Q16 .37 .482 0 1 1 .705Q17 .42 .499 0 1 1 .712Q18 .37 .482 0 1 1 .719Q19 .44 .491 0 1 1 .707Q20 .18 .388 0 1 1 .721Q21 .56 .501 0 1 1 .702Q22 .22 .419 0 1 1 .719Q23 .32 .457 0 1 1 .714Q24 .57 .495 0 1 1 .709Q25 .35 .476 0 1 1 .720Q26 .14 .350 0 1 1 .714________________________________________________________________________________________________________________ (table continues)
16. Table 3. (continued)________________________________________________________________________________________________________________Item M SD Min Max R a - d________________________________________________________________________________________________________________Q27 .50 .495 0 1 1 .709Q28 .31 .461 0 1 1 .717Q29 .51 .500 0 1 1 .706Q30 .33 .469 0 1 1 .726Q31 .48 .594 0 1 1 .719Q32 .23 .417 0 1 1 .717Q33 .35 .476 0 1 1 .719Q34 .63 .479 0 1 1 .713Q35 .31 .460 0 1 1 .705Q36 .45 .497 0 1 1 .714Q37 .12 .328 0 1 1 .711Q38 .80 .404 0 1 1 .732Q39 .45 .487 0 1 1 .709_________________________________________________________________________________________________________________ (table continues)
17. Table 3. (continued)_____________________________________________________________________________________________________Item M SD Min Max R a - d_____________________________________________________________________________________________________Q40 .11 .302 0 1 1 .717Composite .39 .464 0 1 1 .719a_____________________________________________________________________________________________________Note. Min = Minimum; Max = Maximum; R = Range; a - d = alpha with item deleted.avalue for composite for a - d is Cronbachs coefficient alpha for overall scale.
18. RESULTS Self-efficacy (General & Social) Scales are not acceptable for use with students with mild disabilities without modification.
Locus of Control Scale was barely acceptable.
MORE RESEARCH IS NEEDED to see if tests are adequate to use with this population.
MORE RESEARCH IS NEEDED to use these measures with students with LD, BD, and MMD