Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
Basket
Search
More
Search for this keyword
Advanced search
Latest content
Current issue
Archive
Write for Us
About
EBN Blog
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Write for Us
About
EBN Blog
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
BMJ Journals
You are here
Home
Archive
Volume 18, Issue 3
Validity and reliability in quantitative studies
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
Research made simple
Validity and reliability in quantitative studies
Free
Online download statistics by month:
Online download statistics by month: May 2015 to September 2024
Abstract
Full
Pdf
May 2015
269
19
35
Jun 2015
567
72
98
Jul 2015
784
220
129
Aug 2015
1377
267
173
Sep 2015
1742
319
224
Oct 2015
1379
250
136
Nov 2015
2138
184
181
Dec 2015
1666
178
151
Jan 2016
2025
172
144
Feb 2016
2330
217
255
Mar 2016
2597
213
325
Apr 2016
2967
296
497
May 2016
2599
238
493
Jun 2016
2165
171
281
Jul 2016
1732
106
267
Aug 2016
1882
136
231
Sep 2016
2116
713
314
Oct 2016
2730
1260
484
Nov 2016
2747
1396
520
Dec 2016
1965
1370
456
Jan 2017
2218
1524
437
Feb 2017
1575
2057
567
Mar 2017
1945
1985
765
Apr 2017
2716
3104
829
May 2017
2637
2730
607
Jun 2017
2611
2048
490
Jul 2017
2501
1671
437
Aug 2017
2685
1737
527
Sep 2017
6315
208
324
Oct 2017
4626
3060
831
Nov 2017
3974
2941
1081
Dec 2017
3008
2118
711
Jan 2018
3868
2489
1197
Feb 2018
3780
2104
1487
Mar 2018
5172
3134
2282
Apr 2018
5822
3656
2369
May 2018
4839
2777
2141
Jun 2018
4177
2522
1898
Jul 2018
4488
2847
1642
Aug 2018
4776
3369
2258
Sep 2018
4659
3245
2137
Oct 2018
8003
6013
2935
Nov 2018
6981
6108
2223
Dec 2018
6294
5692
1973
Jan 2019
5932
5026
2230
Feb 2019
4993
4437
2398
Mar 2019
5355
5351
3300
Apr 2019
6739
4970
4013
May 2019
6651
4842
3915
Jun 2019
5554
4246
3252
Jul 2019
5228
3889
2612
Aug 2019
5488
3909
2331
Sep 2019
6768
5273
2912
Oct 2019
7747
5383
3715
Nov 2019
7212
4998
3288
Dec 2019
5998
4309
2490
Jan 2020
5022
3665
2603
Feb 2020
5159
3391
3531
Mar 2020
5984
4099
4071
Apr 2020
6741
4762
4339
May 2020
6228
4252
3822
Jun 2020
5904
4213
3801
Jul 2020
5765
3979
3226
Aug 2020
5688
3704
3619
Sep 2020
8153
4920
4035
Oct 2020
7340
5181
4670
Nov 2020
8930
6385
5272
Dec 2020
6633
4287
6659
Jan 2021
9533
6383
8930
Feb 2021
10585
7779
12110
Mar 2021
11024
7316
11975
Apr 2021
11291
7384
9614
May 2021
11619
9362
9426
Jun 2021
7661
7677
10068
Jul 2021
5770
5790
7837
Aug 2021
5582
5594
6916
Sep 2021
6920
6938
8851
Oct 2021
10892
8135
8636
Nov 2021
12132
8119
9038
Dec 2021
10577
7397
8081
Jan 2022
10017
6591
6518
Feb 2022
8832
6205
8975
Mar 2022
11946
7764
8640
Apr 2022
11940
7528
8188
May 2022
12632
8120
8561
Jun 2022
9839
6745
5360
Jul 2022
8302
5487
3812
Aug 2022
9317
6141
3772
Sep 2022
9249
6394
4335
Oct 2022
10445
7291
4883
Nov 2022
12888
8528
5518
Dec 2022
8921
5339
3733
Jan 2023
11691
7545
4954
Feb 2023
12125
8556
5347
Mar 2023
16188
11269
6537
Apr 2023
13951
9037
5643
May 2023
16893
12193
5810
Jun 2023
12404
8642
4571
Jul 2023
9010
6032
3659
Aug 2023
8758
5453
3564
Sep 2023
9753
6426
3249
Oct 2023
10131
6996
3760
Nov 2023
10797
7240
3396
Dec 2023
8844
5112
2518
Jan 2024
5338
2600
1624
Feb 2024
7631
4821
2458
Mar 2024
10914
8508
3568
Apr 2024
10858
7843
3559
May 2024
8574
5493
3528
Jun 2024
6058
4190
2314
Jul 2024
6329
4733
1976
Aug 2024
7549
5800
1872
Sep 2024
7202
5616
2028
Total
737571
500519
383358
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?