Research Methods, Shapes, Center & Spread

Front

What is a skewed distribution?

Back

A skewed distribution is one where the data points are not symmetrically distributed around the mean, resulting in a tail on one side. If the tail is on the left, it is left-skewed; if on the right, it is right-skewed.

Front

What measure of center is best for skewed data?

Back

The median is the best measure of center for skewed data because it is not affected by extreme values.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is a measure of statistical dispersion, calculated as the difference between the third quartile (Q3) and the first quartile (Q1). It represents the range of the middle 50% of the data.

Front

What does a right-skewed histogram indicate?

Back

A right-skewed histogram indicates that the majority of the data points are concentrated on the left side, with a tail extending to the right.

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

What is an observation in research methods?

Back

An observation is a research method where the researcher watches and records behaviors or events as they occur, without interference.

Front

What is a case study?

Back

A case study is an in-depth analysis of a person, group, event, or situation to explore and understand complex issues in real-life contexts.

Front

What is a survey in research?

Back

A survey is a research method that involves collecting data from a group of respondents through questionnaires or interviews to gather information about their opinions, behaviors, or characteristics.

Front

What is standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values, indicating how much the values deviate from the mean.

Front

What is the difference between mean and median?

Back

The mean is the average of all data points, while the median is the middle value when the data points are arranged in order. The median is less affected by outliers.