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n4Studies

n4Studies

n4Studies

开发者: Chetta Ngamjarus

中国
APP ID 复制
680516901
分类
教育
价格
49000.00đ
内购
无
0个评分
0
教育(付费)
第18名
昨日下载量
0
最近更新
2024-02-20
最早发布
2013-08-07
版本统计

  • 278天21小时

    最新版本上线距今

  • 1

    近1年版本更新次数

  • 2013-08-07

    全球最早版本上线日期

版本记录
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  • 版本: 2.3

    版本更新日期

    2024-02-20

    n4Studies

    n4Studies

    n4Studies

    更新日志

    Fix some issues

    视频/截图

    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图

    应用描述

    Ease to calculate the sample size with n4Studies.

    n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes.

    Key features:
    • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion
    • Calculate the sample size for comparing two population means and two population proportions
    • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for comparing two population means and two population proportions
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • You can send a result via Email to your colleague

  • 版本: 2.2

    版本更新日期

    2023-08-03

    n4Studies

    n4Studies

    n4Studies

    更新日志

    Version 2.2 - Add the probability calculations from odds ratio and risk ratio

    视频/截图

    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图

    应用描述

    Ease to calculate the sample size with n4Studies.

    n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes.

    Key features:
    • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion
    • Calculate the sample size for comparing two population means and two population proportions
    • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for comparing two population means and two population proportions
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • You can send a result via Email to your colleague

  • 版本: 2.1

    版本更新日期

    2023-06-29

    n4Studies

    n4Studies

    n4Studies

    更新日志

    Version 2.1 - Fix about image attachments
    Version 2.0 - Change all user interfaces

    视频/截图

    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图

    应用描述

    Ease to calculate the sample size with n4Studies.

    n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes.

    Key features:
    • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion
    • Calculate the sample size for comparing two population means and two population proportions
    • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for comparing two population means and two population proportions
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • You can send a result via Email to your colleague

  • 版本: 2.0

    版本更新日期

    2023-06-27

    n4Studies

    n4Studies

    n4Studies

    更新日志

    • Added a sample size for comparing more than two independent groups (three or four groups)

    视频/截图

    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图
    n4Studies App 截图

    应用描述

    Ease to calculate the sample size with n4Studies.

    n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes.

    Key features:
    • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion
    • Calculate the sample size for comparing two population means and two population proportions
    • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for comparing two population means and two population proportions
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial
    • You can send a result via Email to your colleague

  • 版本: 1.4.1

    版本更新日期

    2014-10-29

    n4Studies

    n4Studies

    n4Studies

    更新日志

    This app has been updated by Apple to display the Apple Watch app icon.

    • Changed the formulas for calculating the sample size of non-inferiority and superiority trial (two sample design)
    • Added the sample size and power calculations for non-inferiority and superiority in one-sample design

    应用描述

    暂无应用描述数据

  • 版本: 1.3.0

    版本更新日期

    2014-08-26

    n4Studies

    n4Studies

    n4Studies

    更新日志

    • Sample size formula(s) is/are shown on each sample size calculation and help screens
    • Added the text fields for design effect in sample size calculations for estimations.
    • Added the calculations for a test performance (sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio, and etc.)

    应用描述

    暂无应用描述数据

  • 版本: 1.2.0

    版本更新日期

    2014-05-29

    n4Studies

    n4Studies

    n4Studies

    更新日志

    fixed bugs

    应用描述

    暂无应用描述数据

  • 版本: 1.1.0

    版本更新日期

    2014-01-24

    n4Studies

    n4Studies

    n4Studies

    更新日志

    • Add the results from a continuity correction
    • Add the calculation for Chi-squared test, OR. and RR. from 2 by 2 table

    应用描述

    暂无应用描述数据

  • 版本: 1.0.0

    版本更新日期

    2013-08-07

    n4Studies

    n4Studies

    n4Studies

    更新日志

    暂无更新日志数据

    应用描述

    暂无应用描述数据