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SW605 Week 9 Flashcards | StudBud
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SW605 Week 9
SW605 Week 9
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SW605 Week 9
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
_ is strength & direction (typically) of relationship between variables.
Chi-square
INXS size
NCIS
Effect size
2
A correlation coefficient of 0 means there is no relationship between variables.
True
False
Prefer not to answer
3
Probability that an event will occur same as probability that it won't occur?
Odds = 0.5
Odds = ∞
Odds = 0
Odds = 1
4
__ is the index of linear relationship
p
r
z
t
5
Odds for when probability that an event will occur is greater than probability it won't?
Odds > 1
Odds < 1
Odds = 1
Odds = ∞
6
The range for an odds ratio is __ to __.
-1, 1
- ∞, 0
0, + ∞
- ∞, + ∞
7
What correlation & test statistic for dichotomous IV & dichotomous DV?
Phi; X2
eta; F
Cramer's V; X2
Point-biserial; t
8
Which correlation & test statistic is used for a continuous IV & continuous DV?
Pearson's r; t
eta; F
eta; Cramer's V
Pearson's r; F
9
What correlation and test statistic for multicategorical IV, continuous DV?
eta/omega; F
eta/omega; Cramer's V
Spearman's rho; t
Spearman's rho; X2
10
Convention for a small correlation?
0.10
0.30
0.50
0.80
11
A d-index of .20 indicates that there is a .20 SD difference between groups.
True
False
12
What correlation & test statistic for multicategorical IV & multicategorical DV?
Wayne Kramer's Flying V; MC5
Pearson's r; t
Cramer's V; X2
eta; F
13
Given the same effect size, as sample size increases,
p
values ____ and test statistics _____.
increase; decrease
increase; increase
decrease; increase
decrease; decrease
14
What is the appropriate graph for correlation coefficients?
3D modeling
Bar graph
Scatterplot
Histogram
15
What does r
2
indicate?
Proportion of variance in DV accounted for by IV
Proportion of correctness of conclusion to accept null
Proportion of correctness of conclusion to reject null
Proportion of variance in IV accounted for by DV
16
Convention for a large correlation?
0.30
0.10
0.80
0.50
17
With a
p
value of 0.03, the relationship between variables is moderate.
True
False
18
What correlation & test statistic for dichotomous IV & continuous DV?
Pearson's r; t
eta; F
Phi; X2
Point-biserial; t
19
Which r-family measures of effect size do not indicate direction of relationship?
phi, eta, & point-biserial
eta, omega, & Cramer's V
Kendall's tau & Spearman's rho
Phi & point-biserial
20
What correlation & test statistic for ordinal IV & ordinal DV?
Phi; t
Spearman's rho/Kendall's tau; X2
Phi; X2
Spearman's rho/Kendall's tau; t/z
21
With a negative correlation, values of IV go up while values of DV go down.
False
True
