Table 2 Reliability analysis of individuals’ motives for caffeine consumption questionnaire

Habit

K1

3.035

1.430

0.812

0.718

0.858

K8

2.945

1.498

0.812

0.788

Alertness

K2

2.815

1.326

0.835

0.939

0.947

K4

2.735

1.266

0.832

0.939

K9

2.625

1.365

0.838

0.939

K11

2.620

1.201

0.639

0.950

K13

2.500

1.315

0.828

0.940

K16

2.300

1.199

0.782

0.942

K18

2.391

1.251

0.796

0.941

K20

2.675

1.288

0.904

0.936

K22

2.660

1.298

0.878

0.937

Mood

K6

2.715

1.328

0.890

0.836

0.921

K12

2.610

1.355

0.890

0.872

Social

K7

1.915

1.133

0.512

0.891

0.880

K10

2.130

1.204

0.802

0.851

K14

2.225

1.201

0.829

0.846

K15

3.205

1.297

0.757

0.860

K19

2.421

1.258

0.766

0.853

K21

3.320

1.243

0.797

0.852

Taste

K3

3.545

1.283

0.878

0.835

0.912

K17

3.405

1.288

0.878

0.842

Symptom management

K5

2.235

1.345

0.546

0.561

0.575

K23

1.553

1.007

0.546

0.315