A student researcher reports: 'I found r = .68 between verbal and mathematical intelligence scores. Because this correlation is strong, verbal intelligence must be causing improvements in mathematical intelligence.' Arrange the evaluative steps a critical reviewer should apply, in the correct order, to judge whether this conclusion is justified.
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Research Methods in Psychology - 4th American Edition @ KPU
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A researcher conducts a study to determine if students with high verbal intelligence scores also tend to have high mathematical intelligence scores. Why is this research considered a study of a non-causal statistical relationship?
A psychologist is investigating the relationship between verbal intelligence and mathematical intelligence using a non-experimental design. Match each aspect of this research process with the reason it characterizes a non-causal statistical relationship study.
Arrange the logical steps a researcher must follow to analyze and categorize the relationship between verbal and mathematical intelligence as a non-causal statistical relationship.
A researcher discovers a strong statistical correlation between verbal intelligence and mathematical intelligence (). The researcher concludes: 'Since these forms of intelligence are significantly related, we can be confident that focused vocabulary training will directly lead to higher scores on calculus exams.' This conclusion represents a valid scientific evaluation of a study investigating naturally occurring variables.
When a researcher investigates the correlation between verbal and mathematical intelligence by measuring naturally occurring variables without any manipulation, they are studying which of the following?
In a study investigating the non-causal statistical relationship between verbal intelligence and mathematical intelligence, the researcher should manipulate the level of verbal intelligence to determine its effect on mathematical performance.
A researcher wants to determine whether scores on a verbal intelligence test are statistically associated with scores on a mathematical intelligence test, without manipulating either variable. Because the researcher is measuring naturally occurring variables rather than establishing causation, this research question calls for a _____ approach.
A psychologist decides to study whether verbal intelligence and mathematical intelligence are related by collecting existing test scores from a large sample of undergraduates without altering either variable. Match each research concept to its correct role or meaning within this specific study.
A researcher measures verbal intelligence and mathematical intelligence scores from 200 students without altering either variable. When breaking down why a causal conclusion is unwarranted, a key reason is that the design includes no _____ of an independent variable, which means third-variable explanations cannot be ruled out and the study can only establish a statistical association between the two constructs.
Based on the provided text, why does investigating the correlation between verbal intelligence and mathematical intelligence require a non-experimental approach? Identify the primary goals of this research question and what the researcher avoids doing.
Based on the provided text's definition of non-causal statistical relationships, explain why Sarah's study is classified as non-experimental and why she cannot use her results to conclude that high verbal intelligence causes high mathematical intelligence.
Suppose a researcher wants to apply a non-experimental design to study the relationship between verbal intelligence and mathematical intelligence. What specific action must they perform regarding the variables, and what must they avoid doing?