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Mobile-only Australia: methodology

We used the following methodology to produce the Mobile-only Australia interactive report.

Definitions

Mobile-only for voice

People with a mobile phone and no fixed-line phone at home.

Mobile-only for internet

People who go online at home using mobile broadband or mobile phones, with no fixed internet connection at home.

Mobile-only for voice and internet

People with a mobile phone and no fixed-line phone at home AND who go online at home using mobile broadband or mobile phones, with no fixed internet connection at home. 

Roy Morgan Single Source

We sourced the data in the Mobile-only Australia report from Roy Morgan Research’s Single Source survey. The data covers interviews conducted in Australia between July 2013 and June 2019.

All figures refer to 12-month periods, either to the end of June (financial years), or to the end of December (calendar years).

The data is based on interviews with Australians aged 18 and over. This is weighted to represent approximately 18 million Australians as at June 2014 and up to 19.5 million Australians as at June 2019 (see table below). View more information about Roy Morgan population estimates.

Table 1:    Total population estimates for Australian adults aged 18 and over, from Roy Morgan Single Source

 

Population estimate

Data period—financial year

Jul 2018 to Jun 2019

19,497,000

Jul 2017 to Jun 2018

19,132,000

Jul 2016 to Jun 2017

18,771,000

Jul 2015 to Jun 2016

18,504,000

Jul 2014 to Jun 2015

18,291,000

Jul 2013 to Jun 2014

18,150,000

Data period—calendar year

Jan to Dec 2019

n/a

Jan to Dec 2018

19,321,000

Jan to Dec 2017

18,941,000

Jan to Dec 2016

18,621,000

Jan to Dec 2015

18,406,000

Jan to Dec 2014

18,195,000

 

The tables below show the Roy Morgan Single Source research sample sizes for the periods used in the report.

Table 2:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over, in the 12 months to June for each year

Data period

Total

Mobile-only for voice

Mobile-only for internet

Mobile only for voice and internet

Jul 2018 to Jun 2019

13,814

4,829

2,378

1,510

Jul 2017 to Jun 2018

14,056

4,088

2,289

1,240

Jul 2016 to Jun 2017

13,884

3,466

2,689

1,300

Jul 2015 to Jun 2016

14,300

3,247

2,262

1,035

Jul 2014 to Jun 2015

15,241

3,395

1,808

836

Jul 2013 to Jun 2014

15,998

3,619

1,978

889

 

Table 3:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over, in the 12 months to December for each year

Data period

Total

Mobile-only for voice

Mobile-only for internet

Mobile only for voice and internet

Jan to Dec 2018

14,224

4,480

2,352

1,390

Jan to Dec 2017

14,422

3,771

2,506

1,252

Jan to Dec 2016

13,717

3,206

2,741

1,274

Jan to Dec 2015

14,674

3,286

1,715

788

Jan to Dec 2014

15,245

3,613

1,924

904

 

Table 4:    Research sample sizes for Roy Morgan Single Source in the 12 months to June each year, by age

Age

2014

2015

2016

2017

2018

2019

18 to 24

1,010

796

768

790

812

729

25 to 34

2,167

1,739

1,465

1,393

1,390

1,252

35 to 44

1,831

1,506

1,346

1,152

1,154

997

45 to 54

2,541

2,226

2,087

1,746

1,696

1,687

55 to 64

3,472

3,416

3,220

3,066

2,971

2,965

65 to 74

3,300

3,653

3,569

3,727

3,785

3,876

75+

1,677

1,905

1,845

2,010

2,248

2,308

 

Table 5:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by gender

Gender

2014

2015

2016

2017

2018

2019

Men

6,927

6,463

6,148

5,912

5,942

5,997

Women

9,071

8,778

8,152

7,972

8,114

7,817

 

Table 6:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by location

Location

2014

2015

2016

2017

2018

2019

Capital cities

9,225

8,319

7,146

7,577

8,013

7,644

Regional areas

6,773

6,922

7,154

6,307

6,043

6,170

Note: ‘Capital cities’ refers to those who live in Australian state capital cities. ‘Regional areas’ refers to those who live outside Australian state capital cities, including Canberra and Darwin.

Table 7:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by income

Income band

2014

2015

2016

2017

2018

2019

Less than $50,000

11,256

10,898

10,022

9,886

9,754

9,434

$50,000 to $99,999

3,444

3,173

3,103

2,897

3,126

3,021

$100,000 to $149,999

933

854

817

814

836

992

$150,000 and over

365

316

358

287

340

367

Note: Income is gross annual individual income.

Table 8:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by education

Education level

2014

2015

2016

2017

2018

2019

Primary school

319

262

233

246

215

249

Some secondary/Tech.

2,287

2,200

2,052

2,115

2,095

1,954

Intermediate/Form 4/Year 10

1,685

1,722

1,650

1,519

1,529

1,423

5th form/Leaving/Year 11

876

830

786

782

731

698

Finished Tech./Matric/HSC/Year 12

3,059

2,803

2,357

2,345

2,371

2,310

Some/now at university

1,312

1,177

1,162

1,033

1,071

1,031

Have diploma or degree

6,460

6,247

6,060

5,844

6,044

6,149

Note: Education level refers to the highest level of education reached by respondent.

Table 9:    Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by living arrangements

Living arrangement

2014

2015

2016

2017

2018

2019

Live alone

3,714

3,678

3,409

3,558

3,726

3,741

Partner and no children

5,407

5,622

5,497

5,334

5,146

5,274

Partner and children

3,883

3,341

3,078

2,656

2,736

2,491

Single parent

872

772

681

649

678

629

With parents

841

706

678

712

772

659

Boarder

78

74

56

67

57

52

Shared household

992

831

713

735

704

770

Other/can't say

211

217

188

173

237

198

Note: 'Boarders' are not shown in the report due to low sample.

Table 10:   Research sample sizes for Roy Morgan Single Source, Australians aged 18 and over in the 12 months to June each year, by parents with children living at home

 

2014

2015

2016

2017

2018

2019

Children aged 5 or under

1,706

1,326

1,160

1,039

1,056

927

Children aged 6 to 11

1,661

1,369

1,307

1,123

1,141

1,038

Children aged 12 to 17

1,446

1,270

1,186

975

977

879

Children aged 18 and over

1,823

1,683

1,495

1,432

1,590

1,421

Total parents with children living at home

4,942

4,273

3,903

3,503

3,618

3,271

Note: Age groups are not mutually exclusive as parents may have children in more than one age group.

Data analysis

The key findings in the Mobile-only Australia report describe and help with interpretation of the data.

Results from data sets are analysed using descriptive analysis techniques, and by socioeconomic and demographic factors, to identify areas with significant patterns or differences.

All estimates relating to the number of people have been rounded to the nearest 1,000 people.

Base sizes are shown at the foot of each chart or table and represent the unweighted count of respondents on which the weighted estimates and proportions are based.

Categories with low sample sizes (less than n=100 interviews) are not shown.

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