Matched groups design - Study guides, Class notes & Summaries

BESC 3020 CH. 11 QUESTIONS WITH ALL CORRECT ANSWERS NEW UPDATE Which of the following is NOT a requirement for constructing a Latin square? - Answer-All possible order sequences are included and fully balanced. The between-persons variability is removed from the error term in the denominator of a test statistic when using a within-subjects design for all the following reasons except? - Answer-Because different participants are observed in each group. A threat to internal validity in whi...

AP Statistics Inference for Regression (CONDITIONS) - correct answer Linear: True relationship between the variables is linear. Independent: observations, 10% condition if sampling without replacement. Normal: Responses vary normally around the regression line for all x-values Equal Variance: around the regression line for all x-values Random: Data from a random sample or randomized experiment Paired t-test: Phrasing Hints, H0 and Ha, Conclusion - correct answer Key Phrase: MEAN DIFFER...

People with more referrals are more likely to be hired. What type of correlation is this? - Answer Positive A researcher wants to determine how socioeconomic status (SES) influences delay of gratification. Participants are matched on all variables but their SES and sorted into three groups: low SES, middle SES, and high SES. Then they're exposed to the delay of gratification procedure. What type of research design is this? - Answer Ex post facto Calvin wants to know how people with ...

CPH Exam Evidence-Based Approaches to Public Health Questions and Answers 2024 2. Epidemiologists conduct observational and experimental studies. Observation of the exposure and disease status of each study participant has yielded many insights into public health, including John Snow's studies of cholera and drinking water in London, England. The two most common types of observational studies are cohort studies and case- control studies; a third type is crosssectional studies. The most effecti...

Baron Cohen Aims - To test whether a group of adults wirh AS / HFA would be impaired on the R-ET & measures of autistic traits - To investigate if there were sex differences on those without autism on this task - To test a group of adults with AS / HFA in order to check if the same deficit had been found in the original test & related tests could be replicated - To test if in a sample of normal adults an inverse correlation could be found w/ performance on the test & the Autism Spectrum quot...

Random Allocation - ANS People are chosen randomly e.g. names from a hat meaning there's an equal chance of being selected. Ecological Validity - ANS How methods can be applied to real life settings. External Validity - ANS How valid results are outside of a research setting. Demand Characteristics - ANS Any cue from the researcher or research situation that can be interpreted by participants as revealing the purpose of the investigation leading ...

The extent to which a study is realistic or representative of real life. - Answer-ecological validity the extent to which experimental findings can be generalized to the real world - Answer-mundane realism How well is the experiment done? less confounding variables = higher - Answer-internal validity validity of applying the conclusions of a study outside the context of the study - Answer-external validity can the study be related to a large group of people? - Answer-generalze measure of a...

lab experiment - These take place in a situation or environment that is artificial to the participants in the study. There are two main types of variable that need to be considered when running any experiment. strengths of lab study - have high levels of standardisation and so can be replicated to test for reliability. As laboratory experiments have high levels of control, researchers can be more confident it is the IV directly affecting the DV. weaknesses of lab study - As labor...

AIR Methods Final Exam Rank the following studies from highest levels of evidence to lowest: - cohort studies (observational, longitudinal, cross-sectional) - case series, case reports - editorials, expert opinion - systematic reviews - randomized controlled trials (RCT: parallel, crossover) - case-control studies 1. Systematic reviews 2. Randomized controlled trials (RCT: parallel, crossover) 3. Cohort studies (observational, longitudinal, cross-sectional) 4. case-control studies 5....

A-level Psychology - Research methods Questions and Answers Already Passed Aim A general expression of what the researcher intends to investigate Hypothesis A precise and operationalised statement about the assumed relationship between variables Directional Hypothesis States the direction of the predicted difference between two conditions or two groups of participants Non-directional Hypothesis Predicts simply that there is a difference between two conditions or two groups of participants wit...