Chapter 14.5, Problem 1LCA

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

The following data represent job-related stress scores for a sample of *n* = 8 individuals. These people also are classified by salary level.

**a.** Convert the data into a form suitable for the point-biserial correlation.

**b.** Compute the point-biserial correlation for these data.

Salary More than $40,000 |
Salary Less than $40,000 |

8 | 4 |

6 | 2 |

5 | 1 |

3 | 3 |

**a.**

To determine

**To convert:** The data into a form suitable for point biserial correlation.

Explanation

**Given info:**

The information is the representing the job-related stress scores for a sample of

**Calculation:**

The salary level is a dichotomous variable and it is coded as

Two scores, X and Y, for each of the

Participant |
X |
Y |

A | 8 | 1 |

B | 6 | 1 |

C | 5 | 1 |

D | 3 | 1 |

E | 4 | 0 |

F | 2 | 0 |

G | 1 | 0 |

H | 3 | 0 |

Calculating the point biserial correlation for these data produces a value for *r*

**b.**

To determine

**To find:** The point biserial correlation.

Sect-14.1 P-1LCSect-14.1 P-2LCSect-14.1 P-3LCSect-14.1 P-4LCSect-14.2 P-1LCSect-14.2 P-2LCSect-14.2 P-3LCSect-14.3 P-1LCSect-14.3 P-2LCSect-14.4 P-1LC

Sect-14.4 P-2LCSect-14.4 P-1LCASect-14.5 P-1LCSect-14.5 P-2LCSect-14.5 P-3LCSect-14.5 P-1LCASect-14.5 P-2LCASect-14.6 P-1LCSect-14.6 P-2LCSect-14.6 P-3LCSect-14.6 P-4LCSect-14.6 P-1LCASect-14.6 P-1LCBSect-14.6 P-2LCBSect-14.6 P-3LCBSect-14.6 P-1LCCCh-14 P-1PCh-14 P-2PCh-14 P-3PCh-14 P-4PCh-14 P-5PCh-14 P-6PCh-14 P-7PCh-14 P-8PCh-14 P-9PCh-14 P-10PCh-14 P-11PCh-14 P-12PCh-14 P-13PCh-14 P-17PCh-14 P-18PCh-14 P-19PCh-14 P-20PCh-14 P-21PCh-14 P-22PCh-14 P-23PCh-14 P-24PCh-14 P-25PCh-14 P-26PCh-14 P-27PCh-14 P-28PCh-14 P-29P

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