Financial innovation has reduced individuals’ need to carry cash. Why?

Which of the following makes it more likely that behavioral observations will have good interrater reliability?

Our cell (80% water & 20% solutes) is placed in a hypertonic solution.Which way is the water going to go?

A type of lipid that makes up the plasma membrane of a cell is:

A threat to internal validity occurs only if a potential design confound varies ______ with the independent variable.

Below is a multiple regression table from the Bazzini et al. (2010) article.       The following is an appropriate description of the results:  The relationship between character role and goodness is significant and negative, even when beauty is controlled for.

A researcher is interested in testing the hypothesis that individuals taking laptop notes will have significantly more verbatim overlap with a lecture than individuals taking longhand notes. The results of the study can be found below. Higher scores on verbatim overlap indicate greater verbatim overlap.        Select the response that most accurately depicts these findings.

Scenario: You pick up a newspaper and read the headline: “Higher income is linked to greater marital satisfaction!” You locate the empirical article that the journalist cites to learn more about the study. Here are some fast facts from the empirical article: The researchers sampled 200 married adults from the Atlanta area. The researchers measured income by having participants report their income from the previous year and measured marital satisfaction using a 5-item self-report scale that they developed for the study. Only income and marital satisfaction were measured. The researchers reported: “There was a statistically significant relationship between higher income and marital satisfaction.” Questions:  1. What type of claim is reported in the headline?   2. Ask two specific questions to interrogate the construct validity of this study.   3. Ask two specific questions to interrogate the statistical validity of this study.   4. Ask one specific question about the external validity of this study.      

DR. CAROL SCENARIO: Dr. Carol conducts a study examining the relationship between exam performance, number of class absences, and amount of time spent studying in a large random sample. Below are her findings. Assume we are using .05 as our level of significance. Exam performance and number of class absences: r = −.67, p = .01 Exam performance and time spent studying: r = .31, p = .04 Number of class absences and time spent studying: r = .04, p = .66 Comparing all three correlations, Dr. Carol will be most able to accurately predict exam performance from the number of class absences because the relationship:

Samuel Gompers was the leader of the…