What is the rate of learning most students experience when first learning statistics?

It takes time with limited understanding before they suddenly spike & grow

The median, while loosing some information that is captured by the mean, is useful as a measure of central tendency when

there are some extreme values in our data inconsistent with the other data

When a distribution of values is positively skewed, which of the following is true?

The mean will generally be larger than the median

In statistics, when we use the word variable, we are referring to

the actual data we end up with when we measure a theoretical construct

Which of the following menu choices would be used to change numerical values to text descriptions for a factor?

Data --> Manage variables in active data set --> Recode variables...

Given a data frame named MyData, the command MyData[1,4] will return

the value that is in the first row and fourth column of the data frame

Given a data frame named MyData, the command MyData[[1:4]] will return

only those values in the columns from 1 to 4 dropping all the other columns

What is the biggest obstacle to the incorporation of R into introductory statistics courses?

Learning to run analyses using commands has a steep learning curve

What is the main lesson that Navarro (2017) tries to point out from her example of Simpson's paradox?

The truth is complex, stats is a valuable tool to make sense of complexity

Why is it useful to use numbers to describe the world around us?

Numbers allow for more precise yet economical descriptions of observations

Which of the following is NOT one of the reasons Navarro (2017) says psychology students should want to study stats?

When people know you know statistics, they find you more attractive

Which is the correct order of operations used in R?

Brackets, then Exponents, then Multiply/Divide, then Addition/Subtraction

Which of the following is the appropriate menu selection in Rcommander for loading an .sav file?

Data --> Import data --> from SPSS data set...

Which of the following is a valid variable assignment?

final.measure <- sqrt(255 + 150) * abs(-9.5)

Which is a fair statement about the relationship between learning statistics & other aspects of your life

Persevering until you gain success in statistics develops an NB life skill

The advantage of the mode as a measure of central tendency is that

It can be used with categorical data

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Revision up to Descriptive Statistics

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Revision of concepts covered up to descriptive statistics

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Questions 25

Answers

1
What is the rate of learning most students experience when first learning statistics?
It takes time with limited understanding before they suddenly spike & grow
They start with a limited understanding and never really progress past that
They start with a limited knowledge base and steadily gain understanding
Students have principles from other modules & just need to cement them
2
The median, while loosing some information that is captured by the mean, is useful as a measure of central tendency when
a variable is measured as categorical data
data are measured at a ratio level of measurement
there are some extreme values in our data inconsistent with the other data
it is significantly different to the mode
3
When a distribution of values is positively skewed, which of the following is true?
The mean will generally be larger than the median
The median will generally be larger than the mean
mean and median are equal, but the mode is larger
mean and mode are equal, but the median is larger
4
In statistics, when we use the word variable, we are referring to
something that often is not directly observable but of theoretical value
the actual data we end up with when we measure a theoretical construct
the kind of information we are performing operations on
the participants that will take part in the study
5
Which of the following menu choices would be used to change numerical values to text descriptions for a factor?
Data --> Manage variables in active data set --> Recode variables...
Data --> Active data set --> Compute new variable
Data --> Manage variables in active data set --> Rename variables
Data --> Active data set --> Subset active data set...
6
Given a data frame named MyData, the command MyData[1,4] will return
the value that is in the first row and fourth column of the data frame
the first four values in the data frame
all the values in first four rows of the data frame
only those values in the columns from 1 to 4 dropping all the other columns
7
Given a data frame named MyData, the command MyData[[1:4]] will return
all the values in first four rows of the data frame
only those values in the columns from 1 to 4 dropping all the other columns
the first four values in the data frame
the value that is in the first row and fourth column of the data frame
8
Gender is _______ data, whereas response time is most probably ______ data
concrete, abstract
biological, theoretical
categorical, measurement
measurement, categorical
9
What is the following symbol in the R console called? <-
Console
Carat
Command prompt
Assignment operator
10
What is the biggest obstacle to the incorporation of R into introductory statistics courses?
It requires a computer that runs the latest version of Windows
It is very difficult to install and start
Learning to run analyses using commands has a steep learning curve
It is relatively new and unknown
11
The ______ is a good measure of household occupants; whereas the ______ is a good measure of monthly household water
mode; mean
mode; median
median; mean
mean; median
12
What is the main lesson that Navarro (2017) tries to point out from her example of Simpson's paradox?
The truth is complex, stats is a valuable tool to make sense of complexity
That statistics makes doing research easy
That there is no gender discrimination in universities
That data must always be disaggregated in order to find the correct answer
13
When a distribution of values is unimodal and symmetric, which of the following measures are likely to be equal?
mean and median
mean and standard deviation
mean and mode
mean, median and mode
14
Why is it useful to use numbers to describe the world around us?
Numbers are more nuanced than words or pictures
Numbers allow for more precise yet economical descriptions of observations
Words cannot be analysed using computers
Numbers can only really be understood by scientists
15
Which of the following is NOT one of the reasons Navarro (2017) says psychology students should want to study stats?
When people know you know statistics, they find you more attractive
Knowing stats makes it easier to understand & do your own research
Fundamentally psychology is harder than natural sciences, making stats NB
Statisticians are expensive, you likely won't afford 1 each time you need 1
16
Which of the following is the appropriate menu selection in Rcommander for loading a R data file?
Data --> Import data --> from R datafile
Data --> Load data set...
File --> Open script file...
Data --> Import data --> from textfile, clipboard, or URL...
17
Which is the correct order of operations used in R?
Brackets, then Exponents, then Multiply/Divide, then Addition/Subtraction
Brackets, Logical Operators, Multiply/Divide, Add/Subtract, then Exponents
Functions then logical operators then mathematical operators
Operations are performed left to right
18
Which of the following is the appropriate menu selection in Rcommander for loading an .sav file?
File --> Open script file...
Data --> Import data --> from SPSS data set...
Data --> Import data --> from textfile, clipboard, or URL...
Data --> Load data set...
19
Which of the following is a valid variable assignment?
1stTrial <- c(12.4, 23.1, 34.9, 38.5, 39.4)
my name <- "Chuck Norris"
q <- 365/12/4
final.measure <- sqrt(255 + 150) * abs(-9.5)
20
Which is a fair statement about the relationship between learning statistics & other aspects of your life
A knowledge of statistics will make no difference to your life
Success in other modules is dependent on your understanding of statistics
You first need to develop math ability & computers before studying stats
Persevering until you gain success in statistics develops an NB life skill
21
Number of children is ______, whereas annual household income is _____ data
measurement, categorical
discrete, continuous
nominal, interval
All of the above options are valid
22
The advantage of the mode as a measure of central tendency is that
It is not effected by outliers in the data
It is an unbiased statistic
It can be used with categorical data
It is easy to calculate and use in equations
23
The ______ can be used to describe the most popular pizza topping whereas the ______ is for how many pizzas are sold p/m
median; mean
mode; median
mode; mean
mean; median
24
Maths = rules & procedures about how to work with numbers, statistics = routines & algorithms for analysing variation
True
False
25
Which variation stat is least likely to deviate from the population parameter from one sample to another
Variance
IQR
Mean
Standard Deviation

Revision up to Descriptive Statistics Flashcards | StudBud