Worksheets and research resources · Page 34

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RoB 2 trial risk-of-bias guidance

Find the official risk-of-bias tool and guidance for randomized-trial results, with versions for parallel-group, cluster, and crossover designs.

CASP critical appraisal checklists

Download free appraisal checklists for several study types and use the accompanying guidance to structure an evidence discussion.

Software Carpentry lessons

Read openly available lessons in the Unix shell, version control, and research programming to improve reproducible analysis workflows.

Choose Statistical Support for Your Study

Compare providers by relevant experience, written scope, reproducible deliverables, and revision terms.

Biostatistics consultant comparison worksheet

Record evidence and unresolved questions when comparing statistical support. No invented scores or provider rankings.

Recover a Paired Change SD with an Explicit Correlation

Document pairing, correlation assumptions, and sensitivity checks before reconstructing a change-score standard deviation.

Use a Cluster Design Effect as an Assumption Check

Explore cluster size and intracluster correlation without mistaking an effective sample size for a power calculation.

Assess Measurement Agreement Beyond Correlation

Plan paired differences, limits of agreement, and acceptable error before comparing two measurement methods.

Translate Likelihood Ratios into Post-Test Probability

Check the pretest estimate and test context before converting diagnostic likelihood ratios into probabilities.

Reconcile Study Flow Before Reporting Follow-Up

Connect screening, allocation, treatment receipt, and analysis counts without mixing overlapping reasons.

Audit Join Cardinality Before Merging Research Tables

Detect duplicate keys and unintended row multiplication before joining participant, visit, and laboratory data.

Check Research Dates Before Calculating Follow-Up

Resolve ambiguous formats, time zones, partial dates, and interval conventions before deriving durations.