#1
Which of the following is NOT an example of a non-experimental research design?
Experimental study
ExplanationExperimental studies involve manipulation, unlike non-experimental designs.
#2
Which of the following is NOT a measure of central tendency?
Standard deviation
ExplanationStandard deviation measures variability, not central tendency.
#3
Which of the following is a qualitative research method?
Case study
ExplanationIn-depth exploration of a particular instance or phenomenon.
#4
What is the primary purpose of using a scatterplot in research?
To display the relationship between two variables
ExplanationVisualizing the association or correlation between two variables.
#5
What is the primary purpose of psychometrics in psychological research?
To measure the validity of a test
ExplanationAssessing the accuracy and consistency of psychological measurements.
#6
What is the purpose of using a Likert scale in a survey?
To measure ordinal variables
ExplanationCapturing respondents' attitudes or perceptions on a scale.
#7
What is the primary goal of factor analysis?
To identify the underlying dimensions of a set of variables
ExplanationReducing complex data to underlying factors or dimensions.
#8
Which of the following statements is true about the null hypothesis?
It is a statement of no effect or relationship
ExplanationA statement tested to assess the presence of an effect or relationship.
#9
What is the primary advantage of using a meta-analysis in research?
It provides a comprehensive summary of existing research findings
ExplanationCombining results from multiple studies to derive overall conclusions.
#10
What does the term 'p-value' represent in hypothesis testing?
The probability of obtaining a sample statistic at least as extreme as the one observed, given that the null hypothesis is true
ExplanationProbability of observing the data or more extreme results under the null hypothesis.
#11
What does the term 'effect size' represent in research?
The magnitude of the relationship between two variables
ExplanationQuantifying the strength of a relationship between variables.
#12
What is the primary goal of item response theory?
To measure the relationship between an individual's ability and their response to a test item
ExplanationModeling the relationship between individual abilities and item responses.