Psychology Quiz #5

What is the dependent variable in an experiment?

• The variable that is measured or observed

• The variable that is manipulated by the researcher

• The variable that is controlled by the participant

• The variable that is not relevant to the study

What does validity refer to in a study or test?

• The extent to which the study measures what it is intended to measure

• The number of participants in the study

• The statistical significance of the results

• The ethical considerations of the study

What is informed consent in research?

• Requiring participants to be fully aware of the nature, risks, and purpose of the study

• Providing participants with information about the true purpose of the study after their involvement

• Obtaining permission from the participants' parents or guardians

• Ensuring that participants are compensated for their time

What is debriefing in research?

• Providing participants with information about the true purpose and nature of the study after their involvement

• Obtaining permission from the participants' parents or guardians

• Ensuring that participants are compensated for their time

• Requiring participants to be fully aware of the nature, risks, and purpose of the study

What are descriptive statistics used for?

• To summarize and describe the basic features of a dataset

• To make predictions or inferences about a population

• To test the statistical significance of results

• To manipulate and control variables in an experiment

What does a histogram represent?

• The distribution of a dataset by dividing it into intervals and showing the frequency of observations in each interval

• The average value of a set of numbers

• The middle value in a dataset

• The most frequently occurring value in a dataset

What is the mode in a dataset?

• The most frequently occurring value

• The average value of a set of numbers

• The middle value in a dataset

• The difference between the highest and lowest values

How is the mean calculated?

• By adding all values and dividing by the total count

• By arranging the values in ascending order and finding the middle value

• By dividing the dataset into intervals and showing the frequency of observations in each interval

• By finding the most frequently occurring value in the dataset

What is the median in a dataset?

• The middle value when the values are arranged in ascending order

• The most frequently occurring value

• The average value of a set of numbers

• The difference between the highest and lowest values

What is a skewed distribution?

• A distribution where the data is not evenly spread around the mean, causing the distribution to be asymmetrical

• A bell-shaped curve that represents the distribution of many naturally occurring phenomena

• Techniques used to make predictions or inferences about a population based on data collected from a sample

• A result that is unlikely to have occurred by chance alone