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Kids and mobiles: Methodology

We used the following methodology to produce our Kids and mobiles interactive report.

Roy Morgan Young Australians Survey

We sourced the data in our Kids and mobiles report from Roy Morgan Research’s Young Australians Survey, a nationwide survey of Australian children aged 6 to 13 years.

The Young Australians Survey interviews approximately 2,500 Australian children annually—the largest continuous survey of this group. The children are from the households of existing Roy Morgan Single Source participants. 

The data in our Kids and mobiles report covers interviews done in Australia from January 2013 to December 2018. All figures refer to 12-month periods to the end of December.

The data from the approximately 2,500 interviews each year is weighted to represent between 2.421 and 2.583 million Australian children over the last 6 years (see the table below).

Table 1: Projected population of Australian children aged 6 to 13 years, from Roy Morgan Young Australians Survey, in the 12 months to December each year

Data period

Population estimate

2018

2,583,000

2017

2,551,000

2016

2,518,000

2015

2,486,000

2014

2,453,000

2013

2,421,000

The following tables detail the sample sizes for each period and demographic breakdown used in our Kids and mobiles report.

Table 2: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, in the 12 months to December each year, by gender

Data period

Total

Boys

Girls

2018

2,379

1,137

1,242

2017

2,563

1,258

1,305

2016

2,523

1,229

1,294

2015

2,906

1,446

1,460

2014

2,404

1,162

1,242

2013

3,485

1,736

1,749

Table 3: Research sample sizes for Roy Morgan Young Australians Survey,
Australians aged 6 to 13 years, in the 12 months to December each year, by age

Data period

Total

6 to 7 years

8 to 9 years

10 to 11 years

12 to 13 years

2018

2,379

448

575

704

652

2017

2,563

538

611

754

660

2016

2,523

471

623

710

719

2015

2,906

587

691

794

834

2014

2,404

542

551

649

662

2013

3,485

766

828

923

968

Table 4: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, in the 12 months to December each year, by location

Data period

Capital cities

Regional areas

NSW/ACT

Vic/Tas

Qld

SA/NT

WA

2018

1,454

925

666

621

517

246

329

2017

1,548

1,015

693

628

588

312

342

2016

1,365

1,158

699

677

515

280

352

2015

1,495

1,411

881

781

591

304

349

2014

1,352

1,052

733

662

525

235

249

2013

2,273

1,212

1,048

1,047

679

341

370

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 5: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, in the 12 months to December each year, by socio-economic quintiles

Data period

AB quintile

C quintile

D quintile

E quintile

FG quintile

2018

665

508

472

373

361

2017

754

551

494

424

340

2016

704

581

520

418

300

2015

799

684

508

490

425

2014

750

544

449

375

286

2013

925

843

653

576

488

Note: Socio-economic quintiles are defined according to the education level, income level, and occupation status of the main survey respondent (usually the parent of the child interviewed for the Young Australians Survey). The AB socio-economic quintile represents the top 20% of individuals with the highest education, income and occupation status. The FG socio-economic quintile represents households with the lowest education, income and occupation status.

Usage sample sizes

The following tables detail the sample sizes for each period and demographic breakdown for children who used a mobile phone ‘in the last 4 weeks’.

Table 6: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, who used a mobile phone, by gender

Data period

Total

Boys

Girls

2018

1,177

525

652

2017

1,216

555

661

2016

1,122

498

624

2015

1,255

555

700

2014

969

428

541

2013

1,462

649

813

Table 7: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, who used a mobile phone, by age

Data period

Total

6 to 9 years

10 to 11 years

12 to 13 years

2018

1,177

298

353

526

2017

1,216

323

351

542

2016

1,122

281

298

543

2015

1,255

306

344

605

2014

969

230

270

469

2013

1,462

380

366

716

Note: ‘The 6 to 7 and 8 to 9 year age groups are combined for this analysis due to the low sample of children aged 6 to 7 who used a mobile phone ‘in the last 4 weeks’.

Table 8: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, who used a mobile phone, by location

Data period

Capital cities

Regional areas

NSW/ACT

Vic/Tas

Qld

SA/NT

WA

2018

725

452

356

302

238

129

152

2017

729

487

322

288

286

156

164

2016

633

489

338

301

238

103

142

2015

692

563

387

321

260

134

153

2014

575

394

300

269

206

100

94

2013

979

483

475

418

264

154

151

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 9: Research sample sizes for Roy Morgan Young Australians Survey, Australians aged 6 to 13 years, who used a mobile phone, by socio-economic quintiles

Data period

AB quintile

C quintile

D quintile

E quintile

FG quintile

2018

304

251

235

192

195

2017

339

256

250

197

174

2016

305

241

234

199

143

2015

320

275

250

213

197

2014

298

237

183

141

110

2013

387

357

277

234

207

Note: Socio-economic quintiles are defined according to the education level, income level, and occupation status of the main survey respondent (usually the parent of the child interviewed for the Young Australians Survey). The AB socio-economic quintile represents the top 20% of individuals with the highest education, income and occupation status. The FG socio-economic quintile represents households with the lowest education, income and occupation status.

Key questions from the Young Australians Survey

  1. 'Do you have or use a mobile phone?’
  2. 'Is the mobile phone you use your own?’
  3. 'Which of the following things have you used a mobile phone for in the last 4 weeks?'

Data analysis

The key findings in our Kids and mobiles report describe and help with interpretation of the data.

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

Base sizes are shown at the foot of each chart 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.

Margins of error
The margin of error allowed in any estimate depends mainly on the number of interviews on which it is based. Margin of error gives indications of the likely range within which estimates would be 95% likely to fall, expressed as the number of percentage points above or below the actual estimate.

More information about margins of error can be found on the Roy Morgan website.

 

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