Data Analysis and Interpretation
Psychology ⇒ Research Methods in Psychology
Data Analysis and Interpretation starts at 11 and continues till grade 12.
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See sample questions for grade 11
A researcher finds a correlation coefficient of r = 0.85 between two variables. What does this indicate about the relationship?
Describe what a Type I error is in hypothesis testing.
Explain the difference between descriptive and inferential statistics in psychological research.
Explain why it is important to check for outliers before analyzing data in psychological research.
A dataset has the following values: 3, 5, 7, 9, 11. What is the range?
A psychologist collects data on the number of hours students sleep per night: 6, 7, 7, 8, 9. What is the median?
A psychologist wants to compare the mean scores of two independent groups. Which statistical test should be used? (1) t-test, (2) ANOVA, (3) Correlation, (4) Regression
A psychologist wants to know if there is a relationship between stress levels and hours of sleep. Which statistical test is most appropriate? (1) t-test, (2) Correlation, (3) ANOVA, (4) Chi-square
A psychologist wants to compare the mean scores of two independent groups. Which statistical test should be used? (1) t-test, (2) ANOVA, (3) Correlation, (4) Regression
A psychologist wants to know if there is a relationship between stress levels and hours of sleep. Which statistical test is most appropriate? (1) t-test, (2) Correlation, (3) ANOVA, (4) Chi-square
A researcher finds that as study time increases, test scores also increase. What type of correlation is this? (1) Positive, (2) Negative, (3) Zero, (4) Curvilinear
What does a p-value less than 0.05 typically indicate in psychological research? (1) The results are not significant, (2) The results are statistically significant, (3) The sample size is too small, (4) The data is skewed
Fill in the blank: In a normal distribution, approximately __________% of the data falls within one standard deviation of the mean.
Fill in the blank: The __________ hypothesis states that there is no significant difference or relationship between variables.
Fill in the blank: The __________ is a graphical representation of the distribution of a dataset, showing the frequency of data within certain intervals.
Fill in the blank: The __________ is the difference between the highest and lowest values in a dataset.
True or False: A large sample size generally increases the reliability of statistical results.
True or False: A scatterplot is used to show the relationship between two quantitative variables.
True or False: Correlation implies causation.
True or False: Descriptive statistics are used to summarize and describe the main features of a dataset.
