Question 1

If the mean IQ is 100 and the standard deviation of the IQ scores is 11,then an IQ of 122 will have a z-score of:

Accepted Answer

A)  1.0 
B)  0.0 
C)  2.0 
D)  2.5 
E)  -2.0 
A)  1.0 
B)  0.0 
C)  2.0 
D)  2.5 
E)  -2.0

Question 2

The Mann-Whitney U test is:

Accepted Answer

A)  an example of a parametric statistic 
B)  a test that assumes that the underlying distributions are normally distributed 
C)  designed for two groups of scores 
D)  intended for within-subjects designs 
A)  an example of a parametric statistic 
B)  a test that assumes that the underlying distributions are normally distributed 
C)  designed for two groups of scores 
D)  intended for within-subjects designs

Question 3

The standard error of the mean decreases as sample size increases.

Accepted Answer

A) True 
 B)False

Question 4

A one-tailed p value is always bigger than a two-tailed p.

Accepted Answer

A) True 
 B)False

Question 5

A type 1 error is rejection of the null hypothesis when it is actually false.

Accepted Answer

A) True 
 B)False

Question 6

The basic F-ratio formula is between-groups variance divided by within-groups variance.

Accepted Answer

A) True 
 B)False

Question 7

The median is:

Accepted Answer

A)  the arithmetic average 
B)  the middle score 
C)  the range 
D)  the most common score 
A)  the arithmetic average 
B)  the middle score 
C)  the range 
D)  the most common score

Question 8

The Wilcoxon test is a non-parametric test for comparing to independent samples.

Accepted Answer

A) True 
 B)False

Question 9

If an experiment has two independent variables,each with three levels (so,it is a 3 $\times$ 3),there are two main effects and one interaction that can be assessed in an ANOVA.

Accepted Answer

A) True 
 B)False

Question 10

A z-score of +1 is one standard deviation above the mean.

Accepted Answer

A) True 
 B)False

If the mean IQ is 100 and the standard deviation of the IQ scores is 11,then an IQ of 122 will have a z-score of:

The Mann-Whitney U test is:

The standard error of the mean decreases as sample size increases.

A one-tailed p value is always bigger than a two-tailed p.

A type 1 error is rejection of the null hypothesis when it is actually false.

The basic F-ratio formula is between-groups variance divided by within-groups variance.

The median is:

The Wilcoxon test is a non-parametric test for comparing to independent samples.

If an experiment has two independent variables,each with three levels (so,it is a 3 $\times$ 3),there are two main effects and one interaction that can be assessed in an ANOVA.

A z-score of +1 is one standard deviation above the mean.

Overview of Psychological Research

Explanation in Scientific Psychology

Exploring the Literature of Psychology

Conducting Ethical Research

Observations in Psychological Research

Relational Research

Basics of Experimentation

Validity and Reliability in Psychological Research

Experimental Design

Complex Design

Small-N Experimentation

Quasi-Experimentation

Interpreting the Results of Research

Presenting Research Results

Filters

Exam 15: Appendices a and B Descriptive and Inferential Statistics

If the mean IQ is 100 and the standard deviation of the IQ scores is 11,then an IQ of 122 will have a z-score of:

The Mann-Whitney U test is:

The standard error of the mean decreases as sample size increases.

A one-tailed p value is always bigger than a two-tailed p.

A type 1 error is rejection of the null hypothesis when it is actually false.

The basic F-ratio formula is between-groups variance divided by within-groups variance.

The median is:

The Wilcoxon test is a non-parametric test for comparing to independent samples.

If an experiment has two independent variables,each with three levels (so,it is a 3 ×\times× 3),there are two main effects and one interaction that can be assessed in an ANOVA.

A z-score of +1 is one standard deviation above the mean.

Overview of Psychological Research

Explanation in Scientific Psychology

Exploring the Literature of Psychology

Conducting Ethical Research

Observations in Psychological Research

Relational Research

Basics of Experimentation

Validity and Reliability in Psychological Research

Experimental Design

Complex Design

Small-N Experimentation

Quasi-Experimentation

Interpreting the Results of Research

Presenting Research Results

Filters

If an experiment has two independent variables,each with three levels (so,it is a 3 $\times$ 3),there are two main effects and one interaction that can be assessed in an ANOVA.