How to conduct research and statistics

Collection by Research Engineer

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This board is focused on providing users with information and methods for conducting and interpreting research and statistics. https://www.scalelive.com

Research Engineer
Include the intervention in your research question using the PICO framwork. Conceptual Framework, Research Question, Statistics, This Or That Questions, Big Data

PICO Framework - Intervention in the Research Question

Include the intervention in your research question using the PICO framwork.

Use these steps to conduct a critical appraisal of prognosis evidence.

Appraising Prognosis Evidence for Patient Similarities, Follow-Up, Temporality, and Precision

When appraising prognosis evidence, there should be a defined sample of patients, sufficient follow-up, adjustment for variables, and validation of findings.

The sample size greatly affects statistical power. Large sample sizes will increase statistical power. Small sample sizes will decrease statistical power. Sociology, Decision Making, Research, Relationship Goals, Flexibility, Design, Thunder, Counseling, Scale

Small Effect Sizes Decrease Statistical Power and Increase The Needed Sample Size

Small effect sizes decrease statistical power and increase the needed sample size.

Non-parametric statistics are used with categorical and ordinal outcomes. Non-parametric statistics are also used when the statistical assumptions of normality and homogeneity of variance are violated. Multivariate Statistics, Principal Component Analysis, Statistics Math, Survey Design, Logistic Regression, Regression Analysis, Evidence Based Medicine

Intention-to-Treat in Randomized Controlled Trials

"Intention-to-Treat" analysis in randomized controlled trials (RCTs) means that all study participants are analyzed in the same group they were randomly assigned to at the beginning of a study.

The independent samples t-test is used to compare two independent groups on a continuous outcome. This statistical test is only run when the assumptions of independence of observations, normality, and homogeneity of variance are met. Statistics Math, Survey Design, P Value, Standard Deviation, Research Question, Thing 1, Research Methods, Data Science, Decision Making

Use and Interpret Independent Samples t-tests in SPSS

Independent samples t-test is used to compare two groups on a continuous outcome. SPSS can be used to conduct assumptions and independent samples t-test.

Calculate The Sample Size Needed for a Research Study Chi Square, Research Studies, Statistics, Biology, Knowledge, Study, Consciousness, Studying, Learning

Calculate The Sample Size Needed for a Research Study

Calculate the needed sample size for ten different statistical tests using G*Power. Choose inclusion criteria, exclusion criteria, and sampling methods.

Non-parametric statistics are used with categorical and ordinal outcomes. Non-parametric statistics are also used when the statistical assumptions of normality and homogeneity of variance are violated. Multivariate Statistics, Principal Component Analysis, Statistics Math, Survey Design, Logistic Regression, Regression Analysis, Evidence Based Medicine

Hire A Statistician For Your Research Project

Eric Heidel, PhD, is a professional statistician that you can hire to provide statistical consulting on your research study.

The sample size greatly affects statistical power. Large sample sizes will increase statistical power. Small sample sizes will decrease statistical power. Sociology, Decision Making, Research, Relationship Goals, Flexibility, Design, Thunder, Counseling, Scale

Small Sample Sizes Decrease Statistical Power and Decrease The Flexibility Of The Effect Size

Small sample sizes decrease statistical power and decrease the flexibility of effect sizes.

The steps for calculating the sample size for a Mann-Whitney U test in G*Power are presented. The effect size is the difference in means between groups. Statistics, Big Data

Calculate The Sample Size for Mann-Whitney U

The steps for calculating the sample size for a Mann-Whitney U test in G*Power are presented. The effect size is the difference in means between groups.

Ethical research questions are written to protect human beings and animals from unfair or dangerous research methods. Ethical is the fourth part of FINER. Research Question, Research Methods, Consideration, Statistics, Safety, How To Remove, Writing, This Or That Questions, Security Guard

FINER and ethical research questions

Ethical research questions are written to protect human beings and animals from unfair or dangerous research methods. Ethical is the fourth part of FINER.

ANOVA is used to compare three or more groups on a normal continuous outcome. SPSS can be used to test the statistical assumptions as well as ANOVA. Machine Learning Deep Learning, Never Stop Learning, Study Skills, Math Skills, Physics Classroom, Maths, Statistics Math, Cross Sectional Study, Third Grade Science

Use and Interpret ANOVA in SPSS

ANOVA is used to compare three or more groups on a normal continuous outcome. SPSS can be used to test the statistical assumptions as well as ANOVA.

The sample size greatly affects statistical power. Large sample sizes will increase statistical power. Small sample sizes will decrease statistical power. Sociology, Decision Making, Research, Relationship Goals, Flexibility, Design, Thunder, Counseling, Scale

Ordinal Outcomes Decrease Statistical Power and Increase The Needed Sample Size

Ordinal outcomes decrease statistical power and increase the needed sample size. This is because ordinal outcomes lack precision and accuracy.

The odds ratio with confidence interval is used for chi-square and case-control designs. The width of the confidence interval is the primary inference. Chi Square, Inference, Decision Making, Public Health, Thesis, Research, Confidence, Engineering, Teaching

Calculate Odds Ratio with 95% Confidence Intervals

The odds ratio with 95% confidence interval is used for chi-square and case-control designs. The width of the confidence interval is the primary inference.

The independent samples t-test is used to compare two independent groups on a continuous outcome. This statistical test is only run when the assumptions of independence of observations, normality, and homogeneity of variance are met. Statistics Math, Survey Design, P Value, Standard Deviation, Research Question, Thing 1, Research Methods, Data Science, Decision Making

Use and Interpret Mann-Whitney U When Homogeneity of Variance is Violated

Mann-Whitney U is used when the assumption of homogeneity of variance is violated for independent samples t-test. SPSS can be used to conduct Mann-Whitney U.

The sample size greatly affects statistical power. Large sample sizes will increase statistical power. Small sample sizes will decrease statistical power. Sociology, Decision Making, Research, Relationship Goals, Flexibility, Design, Thunder, Counseling, Scale

Statistical Power and The Chosen Research Design

Statistical power is affected by research designs. Within-subjects designs increase statistical power, between-subjects and multivariate designs decrease power.

When appraising random controlled trial evidence, there are certain benchmarks that have to be met: Random selection, random assignment, and intention-to-treat. Randomized Controlled Trial, Decision Making, Social Work, Statistics, Trials, Research, The Selection, Exploring, Study

Appraising Randomized Controlled Trial Evidence for Empirical Benchmarks

When appraising random controlled trial evidence, there are certain benchmarks that have to be met: Random selection, random assignment, and intention-to-treat.