Question 1

While descriptive methods often help researchers develop hypotheses about what causes or affects a given behavior, they do not _______________.

Accepted Answer

Descriptive methods are used to observe and describe behavior, but they do not establish cause-and-effect relationships among variables.

Question 2

A researcher conducted a study of the relationship between the amount of television an individual watches and how fearful that individual is about becoming a victim of crime. She found that the more television an individual watched, the more fearful that individual was about becoming a victim of crime. What type of correlation does this represent?

Accepted Answer

This represents a positive correlation because as one variable (amount of television watched) increases, the other variable (fear of becoming a victim of crime) also increases.

Question 3

The strength of a correlation between two variables is referred to as _______________.

Accepted Answer

The strength of a correlation is determined by the magnitude of the correlation coefficient, regardless of whether it is positive or negative.

Question 4

A strong negative correlation indicates that _______________.

Accepted Answer

A strong negative correlation means that as one variable increases, the other variable tends to decrease.

Question 5

As part of a high school science experiment, Simon measures the height and birth month (numbered from 1 to 12) of 50 of his classmates. However, after computing the correlation coefficient, he finds that the two measures are not correlated. The value he computed is closest to _______________.

Accepted Answer

The correlation coefficient measures the strength and direction of a linear relationship between two variables. A value close to 0 indicates no correlation, which matches Simon's finding that height and birth month are not correlated.

Question 6

A strong negative correlation between maternal alcohol consumption and newborn birth weight means that _______________.

Accepted Answer

A strong negative correlation indicates that as maternal alcohol consumption increases, newborn birth weight tends to decrease, showing a link or association between the two variables.

Question 7

When researchers measure several variables at once, they can use __________________ to create a visual diagram that shows how the measured variables relate to each other.

Accepted Answer

Path analyses are used to create visual diagrams that show the relationships between multiple variables, illustrating the direct and indirect connections among them.

Question 8

Pedersen and colleagues (2007) used path analyses to determine whether measures such as disruptive behavior at ages 6 and 7 are related to how lonely children feel when they are 12 and 13 years old. An advantage of this type of analysis is that _______________.

Accepted Answer

Path analysis allows researchers to trace relationships between variables over time, helping to understand how early experiences may influence later outcomes.

Question 9

A disadvantage of conducting experiments in child development research is that _______________.

Accepted Answer

Experiments can be unethical or impractical when dealing with children, as certain manipulations or conditions may not be suitable or safe for young participants.

Question 10

A researcher would like to investigate the effect of alcohol consumption on prenatal development but decides that it would be inappropriate to randomly assign mothers to the alcohol condition. In this case, what is the best alternative for studying the relation between these two variables?

Accepted Answer

The correlational method is the best alternative as it allows the researcher to examine the relationship between alcohol consumption and prenatal development without manipulating the variables, which is ethical and practical in this context.

Question 11

Melinda works in the field of __________, where she attempts to improve the lives of children and families by using child development research to affect laws, regulations, and programs.

Accepted Answer

Social policy involves using research to influence laws, regulations, and programs to improve societal outcomes, such as the lives of children and families.

Question 12

Which of the following events occurs most often, on a typical day in the United States?

Accepted Answer

A teen drops out of high school is the most common event that occurs on a typical day in the United States.

Question 13

________ is a type of research design that studies development by comparing groups of children of different ages against one another at the same point in time.

Accepted Answer

The cross-sectional method involves studying different age groups at a single point in time to understand developmental differences.

Question 14

An advantage of cross-sectional over longitudinal studies is that they _______________.

Accepted Answer

Cross-sectional studies can be completed more quickly than longitudinal studies because they collect data at a single point in time rather than over an extended period.

Question 15

Cowan, et al. (1999) conducted an example of the ________ of research. They investigated developmental changes in short-term memory for single-digit numbers. Their participants were groups of first graders, fourth graders, and young adults.

Accepted Answer

Cowan et al. (1999) used the cross-sectional method, which involves comparing different groups (first graders, fourth graders, and young adults) at a single point in time to investigate developmental changes.

Question 16

The longitudinal method compares the performance or observations across ages by taking repeated measurements from _______________.

Accepted Answer

The longitudinal method involves studying the same individuals over a period of time to observe changes and developments.

Question 17

One disadvantage of studying the same group of children as they age is that some children may not complete the study. Different children may leave the study at different ages. This effect is called _______________.

Accepted Answer

Differential dropout refers to the phenomenon where participants leave a longitudinal study at different rates or times, which can affect the study's results and validity.

Question 18

In the ______________ method for assessing development, differential dropout poses a serious problem.

Accepted Answer

In longitudinal studies, participants are followed over time, and differential dropout can lead to biased results if the dropout is related to the variables being studied.

Question 19

If 10-year-old girls born in the 1950s act differently than 10-year-old girls born in the 1990s, it may be due to _______________.

Accepted Answer

Cohort effects refer to differences that are attributable to the unique experiences of a particular generation or group, such as societal changes over time, rather than individual development.

Question 20

Another name for cross-lag or sequential designs would be _______________.

Accepted Answer

Sequential designs are often referred to as hybrid designs because they combine elements of both cross-sectional and longitudinal research methods.

Quiz 1: Exploring Child Development