Descriptive Statistics
On average, participants reported having dos.step one (SD = step one.71) relationship lovers and you may hooking up everything six minutes (SD = 8.5) in earlier times 90 days. As a whole, 34.8% regarding children claimed with non-safe sex while in the a link. 0%), effect intimately unhappy (39.0%), feel dissapointed about one to a relationship ran past an acceptable limit (35.3%), and you may embarrassment (35.1%).
Dimensionality
A keen EFA given facts one study was sufficiently unidimensional to get to know the latest presumptions of IRT study (RMSEA = .053, RMSR = .09, ? 2 (119) = , CFI = .94, proportion of your own basic so you’re able to second eigenvalue = 5.5:1). All the points was indeed absolutely piled toward unmarried grounds (issues packing .thirty-six in order to .83). step 1
Items Complement
Badly installing issues were removed regarding measure predicated on match plots and modified ? 2 /df ratios (Stark, Chernyshenko, & Drasgow, 2005). Modified ? 2 /df percentages higher than around three to own unmarried, double and you may triplet circumstances was in fact candidates getting deletion (Drasgow, Levine, Tsien, Williams, & Mead, 1995). An individual product “You will find sensed upset one to a link didn’t make me personally feel a lot better regarding myself the very next day” was removed considering bad items fit.
Desk step one gift suggestions brand new factor quotes and you will practical problems of one’s leftover sixteen situations. Product hills (a) varied out of 0.69 to help you 2.84. The region details (b) varied away from 0.fourteen (regretting a connections) so you’re able to 2.73 (hiring an STI). IIFs and item discrimination (a) was basically tested to recognize factors to end up being employed throughout the latest level. Products that had lower discrimination and you can lower Domain Name product recommendations was basically candidates getting removal, as well as 2 products (“You will find alarmed that we may have obtained expecting otherwise obtained my link lover expecting” and you may “My friends features teased myself regarding a link.”) was indeed eliminated throughout the measure (a great = 0.69 and you can 0.87 correspondingly). Removing these items from the level got nothing influence on the new limited precision to have ? (16 points roentgen = 0.78 and fourteen-things r = 0.76). The final 14-goods version had acceptable amounts of precision and you will practical error out of dimensions ( Profile 1 ). The fresh new scale are most reliable in the examining negative results for the individuals whose ? dropped between the indicate (? = 0; r = .85) and you will step 1.5 important deviation above the imply (? = 1.5; roentgen = .84).
Shot information and standard error regarding dimensions properties having fourteen-goods scale. Strong range means complete recommendations; dotted range ways practical error. Theta are plotted regarding dos SD beneath the suggest to three SD over the suggest.
Differential Product Operating
IRTLRDIF was applied to identify five point things (activities 4, 8, a dozen, and fourteen). Using these point affairs, i identified half a dozen extra products which was indeed DIF free (factors 1, 3, 5, eight, 10, 13) and four activities that have DIF (situations 2, six, 9, 11). All things shown significant DIF in the b parameter (difficulty), not the new ? parameter (discrimination). The last calibration of your five activities having DIF was shown when you look at the Desk dos . Inside for every case, boys required higher degrees of the brand new latent characteristic to endorse the object. Such as for example, when you’re ladies who had a latent characteristic rating approximately 0.65 SD over the mean had good 50% likelihood of exhibiting that they had noticed troubled you to a connection companion hasn’t contacted her or him following the connection, men which have a hidden trait score up to several SD above the imply got good 50% probability of endorsing a similar item.
Desk dos
For both male and female college students, the quantity of connecting bad influences is definitely correlated with amount of connections couples, r(284) = .33, p Table 3 ). To get this new criterion-relevant validity of your own NIHI, members exactly who said which have engaged in unprotected sex one or more times during a connections in earlier times three months stated greater negative connection outcomes (Yards = cuatro.forty-eight, SD = step 3.46) than college students who didn’t have non-safe sex (M = 2.72, SD = dos.71), t(605) = six.89, p ***
| .05 | .twenty five ** | .35 *** | .thirty five *** | ||||
| V2 | Level of partners | .twenty four *** | — | .28 *** | .03 | .03 | .03 |
| V3 | Hook frequency | .03 | .39 *** | — | ?.07 | .01 | .04 |
| V4 | Despair | .twenty five ** | ?.04 | .ten | — | .68 *** | .70 *** |
| V5 | Anxiety | .twenty-six ** | ?.04 | ?.03 | .68 *** | — | .77 *** |
| V6 | Stress | .28 *** | ?.02 | .07 | .72 *** | .69 *** | — |
