It was not seen your delivery off examined issues differed rather from the typical shipment. On top of that, IDI directory did not prove the clear presence of floors otherwise threshold consequences on data (only in the example of items nine “I keep wanting something” did a little ceiling effect tell you for everybody about three trials). Frequency studies to have personal test points displayed no problems which have study granulation. Due to that, the items was in fact found in after that analyses. It because of response lay prejudice, such as social desirability and acquiescence.
By applying the Velicer MAP method, it was found that the optimal number of components to be extracted is one, which confirms the original factor structure of the questionnaire. The effect was observed both when the results of the interviewees were analyzed together and when they were divided into validation groups. Subsequently, the result obtained by MAP was verified by means of principal component analysis with oblimin rotation. As the criterion for the number of factors to be isolated, the eigenvalue was set to be equal to at least 2. Assumptions of factor analysis were met [KMO = 0.908; chi ( 91 ) 2 = 1; p < 0.001]. The created factor explains a total of % variance of the questionnaire. The factor structure was checked for the three validation groups, there were no significant differences in the size of explained variance: early adulthood (%), young adolescence (%), problem group (%). The obtained factorial results correspond to the expected one factor dimensions of the original version of the Questionnaire.
Parallel investigation revealed that a single-foundation services try the best for all around three brand new samples. Due to the fact indicated in Dining table 2, the main one-factor model exhibited an effective goods loadings and you will similar show have been observed about your goods loadings across the around three samples. All things loaded saliently with this basis, having product packing varied between 0.505 and you will 0.719 during the early adulthood shot. Throughout the teens it absolutely was anywhere between 0.464 and you may 0.770 along with the challenge class it was between 0.400 and you will 0.668. A decreased loadings were still extreme, guaranteeing the newest coherent construction of one’s Shine kind of the fresh new means.
The next thing provided evaluating the outcome of one’s design installing procedures off their readily available education. There have been no high differences between this new model fitted ratings acquired from the confirmatory factor investigation (CFA). This new Polish types of RS-fourteen shown a coherent you to definitely-dimensional factor design having reples.
At the same time, it needs to be listed you to on about three sample recognition organizations zero significant differences was basically seen. Detailed email address details are offered within the Table step three.
Cross-Group Authenticity Precision from Scales
Cronbach’s alpha coefficient was applied to look at the internal consistency from the newest gotten questionnaire symptoms. The results is demonstrated less than.
The fresh new accuracy of your own written basis are 0.853 (overall shot) in the recognition demo, and this verifies their high surface. Once section toward validation groups, no tall variations in level structure have been observed. Cronbach’s alphas ranged anywhere between 0.824 and 0.871 along side about three products:
The best precision of your gotten foundation are from the more youthful grownups (? = 0.871) and you can correspondingly reasonable by the problem category: (? = 0.824).
Therefore, the internal consistency reliability of the RS-14 is not only acceptable across all sample populations, but also rather robust. Additionally, the analysis of the discriminative power of individual items shows that all test items are positively correlated with the scale. Because of the slight variation in Cronbach’s Alpha value for items where the correlation with the scale was <0.300, it was decided to include all test items in the factor. The exact results are shown in Table 4 below.