Research Study Proposal

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

A researcher aims to study the effect of a new teaching method (A) on student test scores (B). What is the most appropriate way to formulate a testable hypothesis?

If teaching method A is implemented, then student test scores (B) will improve. (correct)
A is related to B.
There will be a change.
Teaching method A is more exciting.

When selecting a theoretical framework for a research study, what primary role does a recent study play in supporting the hypothesis?

It is an easy way to fill up the word count of the research proposal.
It is a requirement by most academic journals.
It provides a specific, up-to-date rationale and context for the hypothesis, grounding it in current research. (correct)
It proves the hypothesis is correct before the research is conducted.

A researcher designs a study on the impact of screen time on sleep quality. Which statement best illustrates the distinction between a conceptual and an operational variable in this context?

Conceptual variable: hours spent using electronic devices; operational variable: subjective rating of sleep satisfaction.
Conceptual variable: sleep quality measured by a doctor; operational variable: the type of electronic device used.
Conceptual variable: the abstract idea of 'screen time'; operational variable: the specific measurement of 'screen time' using a self-report questionnaire. (correct)
There is no distinction since both are the exact same thing.

In a study examining the effectiveness of a new drug, researchers use a precise scale to measure participants' weight. However, the scale consistently adds 2 pounds to each measurement. What type of error does this exemplify, and how does it primarily affect the study's results?

Systematic error; primarily threatens the study's internal validity by consistently skewing the results. (A) Signup and view all the answers

Why is it important to consider potential criticisms of external validity, including ecological validity, when designing a research study?

To maximize the study's impact and relevance in real-world settings, addressing concerns about how well the findings generalize to other populations. (C) Signup and view all the answers

A researcher is investigating the effect of mindfulness meditation on stress levels. Participants are randomly assigned to either a meditation group or a control group. Stress levels are measured using a standardized questionnaire before and after the intervention. What is a potential confounding variable that could affect the internal validity of this study?

Participants' prior experience with meditation or other stress-reduction techniques. (A) Signup and view all the answers

Which of the following best describes the role of operationalization in the context of research design?

Defining how a concept will be measured or manipulated in a study. (B) Signup and view all the answers

When evaluating measurement reliability, what does test-retest reliability primarily assess?

The consistency of results when a test is administered to the same individuals at two different points in time. (B) Signup and view all the answers

In a study measuring the impact of a weight loss program, participants self-report their daily caloric intake. What type of measurement error is most likely to occur, and how could it affect the study's results?

Systematic error due to social desirability bias, potentially underreporting caloric intake and overestimating program effectiveness. (D) Signup and view all the answers

A study finds that a new educational program is effective in improving student test scores within a specific private school. What must researchers consider when evaluating the ecological validity of this study?

Whether the program will yield similar results if implemented in diverse public school settings. (B) Signup and view all the answers

Flashcards

Hypothesis

A testable statement about the relationship between variables.

Variable

A factor that can be changed or manipulated in research.