Chapter 1: Basic Concepts Flashcards Preview

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Flashcards in Chapter 1: Basic Concepts Deck (20)
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1
Q

What are the two types of data?

A
  • Quantitative
  • Qualitative
2
Q

What are the 4 measurement scales?

A
  1. Ratio data.
  2. Interval data.
  3. Ordinal data.
  4. Categorical data.
3
Q

What are the characteristics of ratio data?

A
  • Has a true zero point.
  • Occurs at intervals.
4
Q

What are the characteristics of interval data?

A
  • Placed in order.
  • Specifies difference in scale points.
5
Q

What are the characteristics of ordinal data?

A
  • Labels things.
  • Places them along a continuum.
6
Q

What are the characteristics of nominal data?

A
  • Labels or categorizes things.
7
Q

What is the most informative measurement scale?

A

Ratio data.

8
Q

What is the least informative measurement scale?

A

Nominal (categorical) data.

9
Q

Describing data is called:

A

descriptive statistics.

10
Q

Inferential statistics is:

A

making inferences from data.

11
Q

The goal of descriptive statistics is to characterise a _________ ____-set efficiently and ______________.

A

The goal of descriptive statistics is to characterise a numerical data-set efficiently and representatively.

12
Q

Desriptive statistics ________ and render _________ a multitude of information. However, it also tries to ________ the inevitable ____ that is involved with _________ so much info.

A

Desriptive statistics condense and render meaningful a multitude of information. However, it also tries to minimise the inevitable error that is involved with condensing so much info.

13
Q

The goal of inferential statistics is to infer the __________ of the ______ (population) from those of a ___ (sample) by going beyond the information so as to give ____ assertions, rather than _____ ones.

A

The goal of inferential statistics is to infer the characteristics of the whole (population) from those of a part (sample) by going beyond the information so as to give likely assertions, rather than certain ones.

14
Q

Sample statistics are used to estimate:

A

population parameters.

15
Q

English characters are used to describe:

A

samples.

16
Q

Greek characters are used to describe:

A

populations.

17
Q

The key idea of inferential statistics is that theoretical _______ distributions are composed of innumerable ______ samples.

A

The key idea of inferential statistics is that theoretical sampling distributions are composed of innumerable random samples.

18
Q

The key indices used in inferential statistics are:

_-______ and _________ _______.

A

The key indices used in inferential statistics are:

p-values and confidence intervals.

19
Q

What are the 3 measures of central tendency?

A
  1. Mean
  2. Median
  3. Mode
20
Q
A