In This Experiment,the Risk-Taking Propensity of 90 Inner City Drug

question 19

Multiple Choice

In this experiment,the risk-taking propensity of 90 inner city drug users was measured using a repeated measures test called the Behavioral Analogue Risk Task (BART;Lejuez et al. ,2002) .The higher the BART score,the higher the risk-taking propensity.Participants also filled out questionnaires so that their Psychopathic Personality Inventory (PPI) scores could be computed.PPI scores are used to detect psychopathic traits in a covert manner and are a common indicator of one's level of psychopathy.The main goal of the experiment was to examine the relationship between risk-taking (measured by BART) based on one's level of psychopathy (measured by PPI on a scale of 0-100) ,gender (1 for male and 2 for female) ,and heroin use (1 for heroin use and 0 for no heroin use) .Below is a partial output of a multiple regression analysis. Does this model seem like an adequate model to predict risk-taking propensity?

• A)No,the R-squared value is very low and most of the variables are not statistically significant.
• B)Yes,the r correlation is very strong.
• C)This cannot be determined from the given information.

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Definitions:

Young Adulthood

A stage of human development that typically covers the period from the late teens through the twenties, during which individuals navigate the transition from adolescence to adulthood.

Old Age

a late stage in the human life cycle characterized by the decline in physical and sometimes cognitive function.

Longitudinal Studies

Research methods that involve repeated observations of the same variables over short or long periods of time to detect changes and development patterns.

Cross-Sectional Studies

Research designs that collect data from different individuals at one point in time to examine population characteristics or the prevalence of certain phenomena.