| Study | Newcomb (1986): study US |
| Title | Cohabitation, Marriage and Divorce among Adolescents and Young Adults |
| Source | Journal of Social and Personal Relationships 1986, Vol. 3, 473 - 494 |
| URL | http://spr.sagepub.com/content/3/4/473 |
| DOI | doi: 10.1177/0265407586034005 |
| Public | 19-24 aged Adolescents and young adults, USA 1986 |
| Sample | Non-probability chunk sample |
| Non-Response | |
| Respondents N = | 739 |
| Correlate | |
| Author's label | premarital co-habtation |
| Page in Source | 486 |
| Our classification | Ever lived as married |
| Operationalization | 1 cohabitated 0 non-cohabitated |
| Observed Relation with Happiness | ||
| Happiness Measure | Statistics | Elaboration/Remarks |
| M-PL-?-sq-?-0-a | rpb=+.03 ns | Males all |
| M-PL-?-sq-?-0-a | rpb=-.08 p < .05 | Females all |
| O-SL?-g-sq-?-0-a | rpb=-.08 ns | Males all |
| O-SL?-g-sq-?-0-a | rpb=-.07 ns | Femles all |
| M-PL-?-sq-?-0-a | rpb=+.3 ns | males, married |
| M-PL-?-sq-?-0-a | rpb=-.16 p < .05 | females, married |
| O-SL?-g-sq-?-0-a | rpb=-.07 ns | males, married |
| O-SL?-g-sq-?-0-a | rpb=-.12 ns | females, married |
| Code | Full Text |
| M-PL-?-sq-?-0-a | Selfreport on single question: Happy with enjoyment of life (full text not reported) Scale not reported, assumed 4 step |
| O-SL?-g-sq-?-0-a | Selfreport on single question: satisfaction about … life in general (full text not reported) Scale not reported |
| Symbol | Explanation |
| rpb | POINT BISERIAL COEFFICIENT of CORRELATION Type: descriptive statistic only Measurement level: Correlate: dichotomous, Happiness: metric Range: [-1; +1] Meaning: The point bi-serial coefficient of correlation is the Pearson's coefficient correlation which is obtained if the correlate is an "indicator variable", i.e. a variable which only adopts the values 0 and 1. rpb = 0 « no correlation established rpb = 1 « at correlate level 1 only higher happiness ratings and at correlate level 0 only lower happiness ratings rpb = -1 « at correlate level 1 only lower happiness ratings and at correlate level 0 only higher happiness ratings. |