SAEE - Data Collection and Analysis Questions and Answers Flashcards
6 cards from real SAEE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 SAEE - Data Collection and Analysis Questions and Answers flashcards as text
What does a p-value of 0.03 indicate in hypothesis testing?
Answer: There is a 3% probability the results occurred by chance alone
A p-value of 0.03 means there is only a 3% probability that the observed results would occur if the null hypothesis were true.
Which type of validity refers to whether a test actually measures what it claims to measure?
Answer: Construct validity
Construct validity assesses whether a test truly measures the theoretical concept or trait it is designed to measure.
What is the interquartile range (IQR) used to measure?
Answer: The spread of the middle 50% of data
The IQR measures the range between the first quartile (25th percentile) and the third quartile (75th percentile), capturing the middle 50% of the data.
A teacher collects student performance data at three different points during the school year. What type of study design is this?
Answer: Longitudinal study
A longitudinal study collects data from the same subjects at multiple time points to observe changes or trends over time.
Which graphical representation is best suited for displaying the distribution of continuous data?
Answer: Histogram
Histograms display the frequency distribution of continuous data by grouping values into bins and showing how often data falls within each range.
What term describes the degree to which a measurement tool produces consistent and stable results over repeated trials?
Answer: Reliability
Reliability refers to the consistency of a measurement tool — a reliable instrument yields similar results under the same conditions across multiple administrations.