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Using focus groups in medical education research: AMEE Guide No. 91.

Medical teacher

Stalmeijer RE, Mcnaughton N, Van Mook WN.
PMID: 25072306
Med Teach. 2014 Nov;36(11):923-39. doi: 10.3109/0142159X.2014.917165. Epub 2014 Jul 29.

Qualitative research methodology has become an established part of the medical education research field. A very popular data-collection technique used in qualitative research is the "focus group". Focus groups in this Guide are defined as "… group discussions organized...

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Stalmeijer RE, Mcnaughton N, Van Mook WN. Using focus groups in medical education research: AMEE Guide No. 91. Med Teach. 2014;36(11):923-39doi: 10.3109/0142159X.2014.917165.
Stalmeijer, R. E., Mcnaughton, N., & Van Mook, W. N. (2014). Using focus groups in medical education research: AMEE Guide No. 91. Medical teacher, 36(11), 923-39. https://doi.org/10.3109/0142159X.2014.917165
Stalmeijer, Renée E, et al. "Using focus groups in medical education research: AMEE Guide No. 91." Medical teacher vol. 36,11 (2014): 923-39. doi: https://doi.org/10.3109/0142159X.2014.917165
Stalmeijer RE, Mcnaughton N, Van Mook WN. Using focus groups in medical education research: AMEE Guide No. 91. Med Teach. 2014 Nov;36(11):923-39. doi: 10.3109/0142159X.2014.917165. Epub 2014 Jul 29. PMID: 25072306.
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A simple formula for the calculation of sample size in pilot studies.

Journal of clinical epidemiology

Viechtbauer W, Smits L, Kotz D, Budé L, Spigt M, Serroyen J, Crutzen R.
PMID: 26146089
J Clin Epidemiol. 2015 Nov;68(11):1375-9. doi: 10.1016/j.jclinepi.2015.04.014. Epub 2015 Jun 06.

One of the goals of a pilot study is to identify unforeseen problems, such as ambiguous inclusion or exclusion criteria or misinterpretations of questionnaire items. Although sample size calculation methods for pilot studies have been proposed, none of them...

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Viechtbauer W, Smits L, Kotz D, et al. A simple formula for the calculation of sample size in pilot studies. J Clin Epidemiol. 2015;68(11):1375-9doi: 10.1016/j.jclinepi.2015.04.014.
Viechtbauer, W., Smits, L., Kotz, D., Budé, L., Spigt, M., Serroyen, J., & Crutzen, R. (2015). A simple formula for the calculation of sample size in pilot studies. Journal of clinical epidemiology, 68(11), 1375-9. https://doi.org/10.1016/j.jclinepi.2015.04.014
Viechtbauer, Wolfgang, et al. "A simple formula for the calculation of sample size in pilot studies." Journal of clinical epidemiology vol. 68,11 (2015): 1375-9. doi: https://doi.org/10.1016/j.jclinepi.2015.04.014
Viechtbauer W, Smits L, Kotz D, Budé L, Spigt M, Serroyen J, Crutzen R. A simple formula for the calculation of sample size in pilot studies. J Clin Epidemiol. 2015 Nov;68(11):1375-9. doi: 10.1016/j.jclinepi.2015.04.014. Epub 2015 Jun 06. PMID: 26146089.
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[Sample size and power analyses in clinical trials].

Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke

Pripp AH.
PMID: 28925211
Tidsskr Nor Laegeforen. 2017 Sep 18;137(17). doi: 10.4045/tidsskr.17.0414. Print 2017 Sep 19.

No abstract available.

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Pripp AH. Antalls- og styrkeberegninger i medisinske studier. [Sample size and power analyses in clinical trials]. Tidsskr Nor Laegeforen. 2017;137(17)doi: 10.4045/tidsskr.17.0414.
Pripp, A. H. (2017). Antalls- og styrkeberegninger i medisinske studier. [Sample size and power analyses in clinical trials]. Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 137(17), . https://doi.org/10.4045/tidsskr.17.0414
Pripp, Are Hugo. "Antalls- og styrkeberegninger i medisinske studier." [Sample size and power analyses in clinical trials]. Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke vol. 137,17 (2017). doi: https://doi.org/10.4045/tidsskr.17.0414
Pripp AH. Antalls- og styrkeberegninger i medisinske studier. [Sample size and power analyses in clinical trials]. Tidsskr Nor Laegeforen. 2017 Sep 18;137(17). doi: 10.4045/tidsskr.17.0414. Print 2017 Sep 19. Norwegian. PMID: 28925211.
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Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?.

Qualitative health research

Hennink MM, Kaiser BN, Marconi VC.
PMID: 27670770
Qual Health Res. 2017 Mar;27(4):591-608. doi: 10.1177/1049732316665344. Epub 2016 Sep 26.

Saturation is a core guiding principle to determine sample sizes in qualitative research, yet little methodological research exists on parameters that influence saturation. Our study compared two approaches to assessing saturation: code saturation and meaning saturation. We examined sample...

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Hennink MM, Kaiser BN, Marconi VC. Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?. Qual Health Res. 2016;27(4):591-608doi: 10.1177/1049732316665344.
Hennink, M. M., Kaiser, B. N., & Marconi, V. C. (2017). Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?. Qualitative health research, 27(4), 591-608. https://doi.org/10.1177/1049732316665344
Hennink, Monique M, et al. "Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?." Qualitative health research vol. 27,4 (2017): 591-608. doi: https://doi.org/10.1177/1049732316665344
Hennink MM, Kaiser BN, Marconi VC. Code Saturation Versus Meaning Saturation: How Many Interviews Are Enough?. Qual Health Res. 2017 Mar;27(4):591-608. doi: 10.1177/1049732316665344. Epub 2016 Sep 26. PMID: 27670770.
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Sample size for pre-tests of questionnaires.

Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation

Perneger TV, Courvoisier DS, Hudelson PM, Gayet-Ageron A.
PMID: 25008261
Qual Life Res. 2015 Jan;24(1):147-51. doi: 10.1007/s11136-014-0752-2. Epub 2014 Jul 10.

PURPOSE: To provide guidance regarding the desirable size of pre-tests of psychometric questionnaires, when the purpose of the pre-test is to detect misunderstandings, ambiguities, or other difficulties participants may encounter with instrument items (called «problems»).METHODS: We computed (a) the...

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Perneger TV, Courvoisier DS, Hudelson PM, et al. Sample size for pre-tests of questionnaires. Qual Life Res. 2014;24(1):147-51doi: 10.1007/s11136-014-0752-2.
Perneger, T. V., Courvoisier, D. S., Hudelson, P. M., & Gayet-Ageron, A. (2015). Sample size for pre-tests of questionnaires. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 24(1), 147-51. https://doi.org/10.1007/s11136-014-0752-2
Perneger, Thomas V, et al. "Sample size for pre-tests of questionnaires." Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation vol. 24,1 (2015): 147-51. doi: https://doi.org/10.1007/s11136-014-0752-2
Perneger TV, Courvoisier DS, Hudelson PM, Gayet-Ageron A. Sample size for pre-tests of questionnaires. Qual Life Res. 2015 Jan;24(1):147-51. doi: 10.1007/s11136-014-0752-2. Epub 2014 Jul 10. PMID: 25008261.
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Sample size calculations for stepped wedge trials using design effects are only approximate in some circumstances.

Trials

Hemming K.
PMID: 27146064
Trials. 2016 May 04;17(1):234. doi: 10.1186/s13063-016-1359-4.

UNLABELLED: Estimation of sample size and power for stepped wedge cluster randomised trials can be determined by one of a number of related methods. These include exact analytical approaches, design effects or simulation. A recent paper compared the design...

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Hemming K. Sample size calculations for stepped wedge trials using design effects are only approximate in some circumstances. Trials. 2016;17(1):234doi: 10.1186/s13063-016-1359-4.
Hemming, K. (2016). Sample size calculations for stepped wedge trials using design effects are only approximate in some circumstances. Trials, 17(1), 234. https://doi.org/10.1186/s13063-016-1359-4
Hemming, Karla. "Sample size calculations for stepped wedge trials using design effects are only approximate in some circumstances." Trials vol. 17,1 (2016): 234. doi: https://doi.org/10.1186/s13063-016-1359-4
Hemming K. Sample size calculations for stepped wedge trials using design effects are only approximate in some circumstances. Trials. 2016 May 04;17(1):234. doi: 10.1186/s13063-016-1359-4. PMID: 27146064; PMCID: PMC4857282.
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Predicting Presidential Election Outcomes from What People Watch.

Big data

Barfar A, Padmanabhan B.
PMID: 28328251
Big Data. 2017 Mar;5(1):32-41. doi: 10.1089/big.2017.0013.

In a recent article by Barfar and Padmanabhan (2015), we demonstrated how television viewership data could predict presidential election outcomes in the United States. In this article, we examine predictive models using a snapshot of Nielsen's national data on...

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Barfar A, Padmanabhan B. Predicting Presidential Election Outcomes from What People Watch. Big Data. 2017;5(1):32-41doi: 10.1089/big.2017.0013.
Barfar, A., & Padmanabhan, B. (2017). Predicting Presidential Election Outcomes from What People Watch. Big data, 5(1), 32-41. https://doi.org/10.1089/big.2017.0013
Barfar, Arash, and Padmanabhan, Balaji. "Predicting Presidential Election Outcomes from What People Watch." Big data vol. 5,1 (2017): 32-41. doi: https://doi.org/10.1089/big.2017.0013
Barfar A, Padmanabhan B. Predicting Presidential Election Outcomes from What People Watch. Big Data. 2017 Mar;5(1):32-41. doi: 10.1089/big.2017.0013. PMID: 28328251.
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Sample size for clinical trials.

Oral diseases

Billings M, Lopez Mitnik G, Dye BA.
PMID: 27868306
Oral Dis. 2017 Nov;23(8):1013-1018. doi: 10.1111/odi.12611. Epub 2017 Jan 10.

No abstract available.

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Billings M, Lopez Mitnik G, Dye BA. Sample size for clinical trials. Oral Dis. 2017;23(8):1013-1018doi: 10.1111/odi.12611.
Billings, M., Lopez Mitnik, G., & Dye, B. A. (2017). Sample size for clinical trials. Oral diseases, 23(8), 1013-1018. https://doi.org/10.1111/odi.12611
Billings, M, et al. "Sample size for clinical trials." Oral diseases vol. 23,8 (2017): 1013-1018. doi: https://doi.org/10.1111/odi.12611
Billings M, Lopez Mitnik G, Dye BA. Sample size for clinical trials. Oral Dis. 2017 Nov;23(8):1013-1018. doi: 10.1111/odi.12611. Epub 2017 Jan 10. PMID: 27868306.
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[The research protocol V: The calculation of sample size].

Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)

Rendón-Macías ME, Villasís-Keever MÁ.
PMID: 28658730
Rev Alerg Mex. 2017 Apr-Jun;64(2):220-227. doi: 10.29262/ram.v64i2.267.

Sample size refers to the number of participants to be included in a research study. If the calculation is carried out properly, not only conclusions will be established with statistical support and the potential risks to the subjects included...

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Rendón-Macías ME, Villasís-Keever MÁ. El protocolo de investigación V: el cálculo del tamaño de muestra. [The research protocol V: The calculation of sample size]. Rev Alerg Mex. 2017;64(2):220-227doi: 10.29262/ram.v64i2.267.
Rendón-Macías, M. E., & Villasís-Keever, M. �. �. (2017). El protocolo de investigación V: el cálculo del tamaño de muestra. [The research protocol V: The calculation of sample size]. Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993), 64(2), 220-227. https://doi.org/10.29262/ram.v64i2.267
Rendón-Macías, Mario Enrique, and Villasís-Keever, Miguel Ángel. "El protocolo de investigación V: el cálculo del tamaño de muestra." [The research protocol V: The calculation of sample size]. Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993) vol. 64,2 (2017): 220-227. doi: https://doi.org/10.29262/ram.v64i2.267
Rendón-Macías ME, Villasís-Keever MÁ. El protocolo de investigación V: el cálculo del tamaño de muestra. [The research protocol V: The calculation of sample size]. Rev Alerg Mex. 2017 Apr-Jun;64(2):220-227. doi: 10.29262/ram.v64i2.267. Spanish. PMID: 28658730.
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Sample size.

Journal of the American Academy of Dermatology

Elston DM.
PMID: 29128456
J Am Acad Dermatol. 2018 Oct;79(4):635. doi: 10.1016/j.jaad.2017.11.006. Epub 2017 Nov 08.

No abstract available.

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Elston DM. Sample size. J Am Acad Dermatol. 2017;79(4):635doi: 10.1016/j.jaad.2017.11.006.
Elston, D. M. (2018). Sample size. Journal of the American Academy of Dermatology, 79(4), 635. https://doi.org/10.1016/j.jaad.2017.11.006
Elston, Dirk M. "Sample size." Journal of the American Academy of Dermatology vol. 79,4 (2018): 635. doi: https://doi.org/10.1016/j.jaad.2017.11.006
Elston DM. Sample size. J Am Acad Dermatol. 2018 Oct;79(4):635. doi: 10.1016/j.jaad.2017.11.006. Epub 2017 Nov 08. PMID: 29128456.
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Number allowed to diagnose.

Epidemiology (Cambridge, Mass.)

Gerke O, Vach W.
PMID: 24296933
Epidemiology. 2014 Jan;25(1):158-9. doi: 10.1097/EDE.0b013e3182a77a81.

No abstract available.

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Gerke O, Vach W. Number allowed to diagnose. Epidemiology. 2014;25(1):158-9doi: 10.1097/EDE.0b013e3182a77a81.
Gerke, O., & Vach, W. (2014). Number allowed to diagnose. Epidemiology (Cambridge, Mass.), 25(1), 158-9. https://doi.org/10.1097/EDE.0b013e3182a77a81
Gerke, Oke, and Vach, Werner. "Number allowed to diagnose." Epidemiology (Cambridge, Mass.) vol. 25,1 (2014): 158-9. doi: https://doi.org/10.1097/EDE.0b013e3182a77a81
Gerke O, Vach W. Number allowed to diagnose. Epidemiology. 2014 Jan;25(1):158-9. doi: 10.1097/EDE.0b013e3182a77a81. PMID: 24296933.
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A myriad of methods: calculated sample size for two proportions was dependent on the choice of sample size formula and software.

Journal of clinical epidemiology

Bell ML, Teixeira-Pinto A, McKenzie JE, Olivier J.
PMID: 24439070
J Clin Epidemiol. 2014 May;67(5):601-5. doi: 10.1016/j.jclinepi.2013.10.008. Epub 2014 Jan 16.

OBJECTIVES: Several methods exist to calculate sample size for the difference of proportions (risk difference). Researchers are often unaware that there are different formulae, different underlying assumptions, and what the impact of choice of formula is on the calculated...

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Bell ML, Teixeira-Pinto A, McKenzie JE, et al. A myriad of methods: calculated sample size for two proportions was dependent on the choice of sample size formula and software. J Clin Epidemiol. 2014;67(5):601-5doi: 10.1016/j.jclinepi.2013.10.008.
Bell, M. L., Teixeira-Pinto, A., McKenzie, J. E., & Olivier, J. (2014). A myriad of methods: calculated sample size for two proportions was dependent on the choice of sample size formula and software. Journal of clinical epidemiology, 67(5), 601-5. https://doi.org/10.1016/j.jclinepi.2013.10.008
Bell, Melanie L, et al. "A myriad of methods: calculated sample size for two proportions was dependent on the choice of sample size formula and software." Journal of clinical epidemiology vol. 67,5 (2014): 601-5. doi: https://doi.org/10.1016/j.jclinepi.2013.10.008
Bell ML, Teixeira-Pinto A, McKenzie JE, Olivier J. A myriad of methods: calculated sample size for two proportions was dependent on the choice of sample size formula and software. J Clin Epidemiol. 2014 May;67(5):601-5. doi: 10.1016/j.jclinepi.2013.10.008. Epub 2014 Jan 16. PMID: 24439070.
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Showing 1 to 12 of 426 entries