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Class 4Class 4 ANOVA; Writing, Regression ANOVA; Writing, Regression
Corkin et al. (2008), P&B 6, Linear Regression Handout
Factorial DesignsFactorial DesignsIndependent Variables: Categorical
Experimental Design: Manipulated IVs --e.g. treatment groups
Expo Facto Design Status IVs: gender; ethnicity; depression diagnosis
Dependent Variables◦Continuous
2
Corkin et al. Article Corkin et al. Article
1. Research Questions
2. Literature Review
3. Analyses
3
Corkin et al. Research Corkin et al. Research QuestionsQuestions
a. Explore the factor structure of a Spanish version of the CDS
b. Examine the relation of trait anxiety to the (four) identified dimensions of career indecision.
c. Explore differences in anxiety and career indecision dimensions among (a) gender groups and (b) three career decision groups
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VariablesVariables
1.Gender Male Female
2.Career Decision Satisfaction Gps. Satisfied Satisfied/Doubts Undecided
3. Career Indecision Dimensions
1. Lack of Structure2. Lack of Support3. Approach-
Approach4. Barriers
4.Trait Anxiety5
Corkin et al. Research Corkin et al. Research QuestionsQuestions
a. Explore the factor structure of a Spanish version of the CDS
◦ Type of Question: ◦ IVs◦ DVs ◦ Research Design: ◦ Analysis:
6
Corkin et al. Research Corkin et al. Research QuestionsQuestions
a. Explore the factor structure of a Spanish version of the CDS
◦ Type of Question: Descriptive ◦ IVs◦ DVs ◦ Research Design: Data
Reduction◦ Analysis: Factor analysis
7
Corkin et al. Research Corkin et al. Research QuestionsQuestions
b. Examine the relation of trait anxiety to the (four) identified dimensions of career indecision.
◦ Type of Question:◦ IVs:◦ DVs: ◦ Research Design:◦ Analysis
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Corkin et al. Research Corkin et al. Research QuestionsQuestions
b. Examine the relation of trait anxiety to the (four) identified dimensions of career indecision.
◦ Type of Question: association◦ IVs: career indecision; continuous◦ DVs: trait anxiety; continuous◦ Research Design: correlational◦ Analyses: correlation coeff.
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Corkin et al. Research Corkin et al. Research QuestionsQuestions
c. Explore differences in anxiety and career indecision dimensions among (a) gender groups and (b) three career decision satisfaction groups
◦ Type of Question: ◦ IVs: ◦ DVs: ◦ Research Design: ◦ Analysis
10
Corkin et al. Research Corkin et al. Research QuestionsQuestions
c. Explore differences in anxiety and career indecision dimensions(CID) among (a) gender groups and (b) three career decision satisfaction groups
◦ Type of Question: Difference/ Association
◦ IVs: Categorical Gender groups C Decision Satisfaction groups: Possible: C Decision Groups X Gender
◦ DVs: Continuous Anxiety (1) and C Indec. Dimensions (4):
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Corkin et al. Research Corkin et al. Research QuestionsQuestions
c. Explore differences in anxiety and career indecision dimensions(CID) among (a) gender groups and (b) three career decision satisfaction groups
◦ Research Design: Expo-facto,
factorial design
◦ Analysis: MANOVA; follow up with ANOVAs; and Pair wise Comparisons
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IDs and DVs – IDs and DVs – Question CQuestion C
IDVs: 1.Gender
Male Female
2.Career Decision Satisfaction Gs Satisfied Satisfied/
Doubts Undecided
DVs: Career Indecision
D. 1. Lack of Structure2. Lack of Support3. Approach-
Approach4. Barriers
5.Trait Anxiety
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Study ‘s Logical FrameworkStudy ‘s Logical FrameworkWhat is known about:What is known about:
Career indecision and anxiety……
Dimensions (antecedents) of career indecision (4) …….
Sub-groups of career decided students--satisfied vs. not satisfied vs. undecided……
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It is known that….It is known that….Positive relation of career indecision to
anxiety.
Dimensions (antecedents) of career indecision may relate in different ways to anxiety. (Lack of Sup, Lack of Struct., App-App, Barriers)
Sub-groups of career decided students-- decided vs. decided/doubts vs. undecided – differ in anxiety and in four antecedents of career indecision scores (4 dimensions of CI).
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It is not known that…..It is not known that…..To what extent what is known from
research with college students in the US, using instruments in English will be consistent with findings among college students in Puerto Rico using the Spanish version of instruments.
Rationale: Puerto Ricans migrate frequently back and forth from PR to the USA mainland.
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Table 2: Table 2: Correlations of CDS Correlations of CDS Factor Factor Scores and Trait Scores and Trait AnxietyAnxietyFactors 1 2 3 4
1. Lack of Structure2. Lack of Support .49**3. Approach–Approach .55** .41**4. Perceived Barriers .52** .37** .41**5. Trait Anxiety .35** .21** .34** .28** ** p<.01
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Corkin et al. Research Corkin et al. Research QuestionsQuestions
b. Examine the relation of trait anxiety to the (four) identified dimensions of career indecision.
◦ Hypotheses: Dimensions of CI (pp. 83-85)1. Lack of Structure 2. Lack of Support3. Approach-Approach4. Barriers
◦ Analysis:
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Corkin et al. Research Corkin et al. Research QuestionsQuestions
b. Examine the relation of trait anxiety to the (four) identified dimensions of career indecision.
◦ Hypotheses: Dimensions of CI1. Lack of Structure + relation2. Lack of Support + relation3. Approach-Approach No relation (p.83)
4. Barriers + relation
◦ Analysis: Pearson Correlation Coefficients
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Question C: Question C: Differences in Differences in anxietyanxiety (1) and (1) and career indecision dimensions career indecision dimensions (4) among :(4) among : IVs Gender
Male, Female
Career Dec. Satisfaction groups Decided, Decided/Doubts, Undecided
DVs: Anxiety Career Indecision Dimensions:
1. Lack of support 3. Lack of structure 2. Perceived Barriers 4.
Approach/Approach21
MMANOVA 2 x 3 – 5 DVs ANOVA 2 x 3 – 5 DVs (1)(1)
DVS4 variablesCareer IndecisionDimensions
1variable
Anxiety
F Stat.(Pillais Trace)
Eta h2
Effect size
Gender (F, M)
3.68** .06
C Dec. Satisfaction Groups
SatisfiedSatisified/DbtsUndecided
18.43***
.23
C Dec. Satisfaction Groups x Gender
S X GenderSD x GenderUnd. X Gender
4.02ns .03
Results MANOVA reported on article page 88 Bottom right & 89 t0p** p<.01, ***p<.001
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Results MANOVAResults MANOVA There were statistically significant
differences for:◦gender, Pillai’s Trace = .056, F(5, 310) =
3.68, p < .01, multivariate h2 = .06, and for
◦ career decidedness groups, Pillai’s Trace = .457, F(10, 622) = 18.43, p < .001, multivariate h2 = .23.
◦The two-way interactions of each career decision satisfaction subgroups x gender were not statistically significant (article p. 88 bottom right)
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22 x x 33 ANOVA ANOVATwo Dependent Variables
Gender – 2 Levels - ◦Male Female
Career Decidedness Groups – 3 Levels◦Decided – Well Satisfied◦Decided- With Doubts◦Undecided
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Question C: Main Effects- Question C: Main Effects- Five Five 2 x 3 ANOVA 2 x 3 ANOVA
Anxiety
Career Decidedness Groups
Lack Support
LackStructure
Prcvd. Barriers
ApproachApproach
Gender**
M M1 M3 M5 M7 M9
F M2 M4 M6 M8 M10
C. Decd G***
Decided M1 M4 M7 M10 M13
Dec/Dbts M2 M5 M8 M11 M14
Undecided M3 M6 M9 M12 M15
** p<.01, ***p<.001 Bonferroni C .05/15 = .003 26
Question C: Main Effects- Question C: Main Effects- Five Five 2 x 3 ANOVA 2 x 3 ANOVA Anxiety
Career Decidedness Groups
Lack Support
LackStructure
Prcvd. Barriers
ApproachApproach
Gender**
M M1 M3 M5 M7 M9
F M2 M4 M6 M8 M10
C. Decd G***
Decided M1 M4 M7 M10 M13
Dec/Dbts M2 M5 M8 M11 M14
Undecided M3 M6 M9 M12 M15
** p<.01, ***p<.001 Bonferroni C .05/15 = .003 30
Interaction Effects- Interaction Effects- GenderGender as as Moderator Repeat Analyses Moderator Repeat Analyses for for each gendereach gender
Career Indecision DimensionsAnxiety Lack
Support
LackStructure
Prcvd. Barriers
ApproachApproach
C. Decd G
Decided M Females
M F4 M F7 M F10 M F13
Dec/Dbts M F2 M F5 M F8 M F11 M F14
Undecided
M F3 M F6 M F9 M F12 M F15
C. Decd G
Decided M Males M M 4 M M 7 M M 10 M M 13
Dec/Dbts M M2 M M5 M M8 M M11 M M14
Undecided
M M3 M M6 M M9 M M12 M M15
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