Statistical Analysis in Psychology Quiz

What type of data is represented by numbers and facts that are not open to interpretation?

• Inferential data

• Qualitative data

• Descriptive data

• Quantitative data

Which statistical method involves organizing and describing collected data?

• Qualitative analysis

• Descriptive statistics

• Quantitative analysis

• Inferential statistics

In a histogram, how are the bars different from those in a bar graph?

• They are separated by space

• They are horizontal

• They are colored differently

• They are not separated by space

What is the term for the average value in a data set?

• Range

• Mean

• Median

• Mode

How do you find the median in a data set with an even number of values?

• Choose the middle value

• Average the two middle values

• Select the lowest value

• Select the highest value

What does the range in a data set represent?

• The average of all values

• The sum of all values

• The difference between the highest and lowest values

• The most frequently occurring value

In a normal distribution, what percentage of scores fall within one standard deviation of the mean?

• 50%

• 68%

• 99%

• 95%

What does a positive skew in a data set indicate?

• Scores are all the same

• Scores are clustered to the right of the mean

• Scores are evenly distributed

• Scores are clustered to the left of the mean

What does a correlation coefficient close to 1 indicate?

• A strong relationship between variables

• An inverse relationship between variables

• No relationship between variables

• A weak relationship between variables

What does a p-value less than or equal to 0.05 signify?

• Results are not significant

• Results are inconclusive

• Results are statistically significant

• Results are due to chance