s Question Completion Status: Select all statements below that are TRUE. Choose

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s Question Completion Status: Select all statements below that are TRUE. Choose all that are true and none that are not. 1 Effectivesampling strategies can improve external validity 2- Sampling helps to distribute confounders evenly between groups in randomized controlled trials 03. Sampling is the main difference between experimental and non-experimental studies 4 Randomination improves internal validity O5 Randomization ensures a representative sample The vast majority of experimental studies use stratified random sampling techniques Simple random sampling must be accompanied by randomization 8-Randomization is the main difference between experimental and non-experimental research QUESTION4 10.00000 points Save Answer Which of the following are valid statements about construct validity. check all that apply and none that do not. Construct validity is: related to construct validity but construct validity is more complex and involves different concepts. the ability of an instrument to to measure an abstract concept. the ability to predict a future score on another scale the ability of an instrument to produce similar results upon successive administrations Click Save and Submit to save and submit. Click Save All Answers to sove all answers Save and Submit Save All Answers

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TRUE Statements:-Effective sampling strategies can improve external validity Randomization improve internal validity Simple random sampling must be accompanied by randomization Randomization is the main difference between experimental and non experimental research 4.TRUE-Construct validity is the ability of an instrument to measure abstract concept

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