EBK PSYCH 5, INTRODUCTORY PSYCHOLOGY, 5
5th Edition
ISBN: 9780357231623
Author: Rathus
Publisher: CENGAGE CO
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Chapter 2, Problem 7FI
Summary Introduction
Introduction
Because our surroundings do not remain the same across our lifetimes, our bodies need a way to adapt to those changes and pass on those adaptations to our children and future generations.
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Results : Correlation
Pearson's Partial Correlations
Variable
JWB average
IRMA total 2
1. JWB average
Pearson's r
—
p-value
—
2. IRMA total 2
Pearson's r
0.597
—
p-value
< .001
—
Note. Conditioned on variables: Gen ID.
Linear Regression
Model Summary - IRMA total
Model
R
R²
Adjusted R²
RMSE
M₀
0.000
0.000
0.000
5.450
M₁
0.779
0.607
0.560
3.614
Note. M₁ includes Hostle Average, Gen ID, JWB average
ANOVA
Model
Sum of Squares
df
Mean Square
F
p
M₁
Regression
505.296
3
168.432
12.897
< .001
Residual
326.497
25
13.060
Total
831.793
28
Note. M₁ includes Hostle Average, Gen ID, JWB average
Note. The intercept model is omitted, as no meaningful information can be shown.
Coefficients
Model
Unstandardized…
Questions #22,28,44,66; explain your answers throughly; give examples if you want
22) Which of the following represents a leading question?a. "What is your opinion of the recent policy change?"b. "Do you agree that the new policy is harmful?"c. "What is your age group: 18-25, 26-35, 36-50?"d. "Do you support the policy change?”
28) In a pretest-posttest design, which validity threat is most likely to occur?a. History effectsb. Random sampling errorc. Social desirability biasd. Observer effects
44) In a between-within factorial design, ____ IV is manipulated between subjects and ___ IV is manipulated within subjects.
66) What is the purpose of a reversal (ABA) design in single-subject research?a. To measure the effect of multiple treatments simultaneously.b. To establish causality by observing behavior before, during, and after treatment.c. To compare multiple participants’ behavior across conditions.d. To identify baseline differences between participants.
What does the results indicate?
Correlation
Pearson's Partial Correlations
Variable
JWB average
IRMA total 2
1. JWB average
Pearson's r
—
p-value
—
2. IRMA total 2
Pearson's r
0.597
—
p-value
< .001
—
Note. Conditioned on variables: Gen ID.
Linear Regression
Model Summary - IRMA total
Model
R
R²
Adjusted R²
RMSE
M₀
0.000
0.000
0.000
5.450
M₁
0.779
0.607
0.560
3.614
Note. M₁ includes Hostle Average, Gen ID, JWB average
ANOVA
Model
Sum of Squares
df
Mean Square
F
p
M₁
Regression
505.296
3
168.432
12.897
< .001
Residual
326.497
25
13.060
Total
831.793
28
Note. M₁ includes Hostle Average, Gen ID, JWB average
Note. The intercept model is omitted, as no meaningful information can be shown.
Coefficients
Model…
Chapter 2 Solutions
EBK PSYCH 5, INTRODUCTORY PSYCHOLOGY, 5
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Similar questions
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- Match each threat with the appropriate definition.; explain your answers thoroughly, give examples if you want a. Maturationb. Regression to the meanc. Selection of Subjectd. Selection by Maturation Interactione. Mortality/Attritionf. Instrumentationg. Testingh. History54. ___ Change may be due to growth, development, experience55. ___ Change may be due to practice and familiarity with tests56. ___ Change may be due to participants dropping out of study57. ___ Change/difference in DV may be due to an event that occurred before or duringintervention that was not controlled for58. ___ Change may be due to subjects selected59. ___ Change may be due to inaccurate / inconsistent measurement procedures(measurement error)60. ___ Change may be due to participants with extreme scores on test, have less extremescores on retest61. ___ Change may be due to treatment/no treatment groups developing differentlyarrow_forwardQuestion #62: Differences in outcomes are found between T1 and T2 of a test that measures physiological stress reactions. However, all tests at T1 were administered by the head. researcher, while all tests at T2 were administered by a new research member in a lab. This is an example of what type of threats to internal validity? Explain your answer thoroughly.arrow_forwardMatch each type of within-subjects research design aimed at reducing potential confounds tothe correct description.A. Crossover/CounterbalancedB. Random block38. ____ In this design, half of the participants are exposed to treatment 1 first and thentreatment 2, while half of the participants are exposed to treatment 2 first and thentreatment 1.39. ____ In this design, there are an equal number of blocks per condition/treatment, whichare randomly intermixed for each participant.arrow_forward
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